Install Windows 8.1 Preview on Oracle VirtualBox

Shortly after Windows 8.1 Preview was announced at this year's Build conference, Microsoft made it available to install through the Windows Store. The ISO files took a while to appear (MSDN subscribers got to download them first, followed by anyone with access to BitTorrent) but they are finally available to download officially from here.

Because Windows 8.1 is a preview version, and far from the finished article, you may not want to upgrade your existing operating system just yet. Fortunately, you can try the Windows 8 refresh without risk by installing it in a virtualized environment using the free Oracle VM VirtualBox.

Launch VirtualBox and click New in the Manager window. In the Create Virtual Machine dialog box enter "Windows 8.1" as the name of the operating system. VirtualBox will fill in the rest of the details. Hit Next.

Set the Memory Size. The recommended figure should be fine. On the following screen choose to "Create a virtual hard drive now" and click Create.

Accept VDI (VirtualBox Disk Image) as the hard drive file type. You’ll be asked if you want the new virtual hard drive to be dynamic (meaning it will resize as required) or a fixed size. Although it will take a while longer to create a fixed size drive, the operating system will run faster afterwards, so I always recommend choosing the latter option.

Enter in a name for the new virtual drive ("Windows 8.1") and choose a size for it. The default size should be fine. Click Create and VirtualBox will begin building the drive. It will probably take around 10 minutes or so.

When done, click the Start button in the Manager. In the "Select start-up disk" window, click the folder icon and navigate to the Windows 8.1 ISO.

Click Start and Windows 8.1 will begin to load, showing the fish screen. Click the "Install now" button. Enter the product key (NTTX3-RV7VB-T7X7F-WQYYY-9Y92F) when prompted and accept the license terms. Choose the "Custom: Install windows only (advanced)" option. Click Next, and the installation process will begin, rebooting as necessary.

When that’s done, personalize the OS by picking a color and entering a PC name, and then choosing to use the express settings or customizing things further.

Set up a Microsoft Account if you don’t already have one, and sign in with it. You'll then be able to choose if you want to use SkyDrive to save your files to the cloud. Camera roll and PC settings are automatically backed up there.

Windows will set everything up, check for updates, and then start. Click View in VirtualBox to change the window size to Fullscreen or Scale. The easiest way to shut down Windows 8.1 is to click the X in VirtualBox and select "Power off the machine".

Top 10 changes that Microsoft Windows 8.1 will bring

After several rumours hinting at the new features that Microsoft's Windows 8.1 would bring, the Redmond giant has officially announced some of them through a new blog post taking a "first look."According to Microsoft, Windows 8.1 will not just respond to customer feedback, will add new features and functionality to improve the touch experience and the operating system's mobile computing potential.
"The Windows 8.1 update will deliver improvements and enhancements in key areas like personalization, search, the built-in apps, Windows Store experience, and cloud connectivity," the company said.
1. New Start tip
The biggest change that the update brings is the Windows Logo at the left hand corner in place of the Start screen "tip" that comes up when one hovers the mouse pointer in Windows 8. The Windows Logo is more recognisable according to Microsoft. It also gives the ability to users to choose between booting to the desktop directly. At the moment, only the Start screen shows up when one boots the PC.
2. Desktop wallpapers for Start screen
Microsoft will now allow users to turn their PCs or tablets into a photo frame when it's locked. Users can choose to show a slideshow of pictures stored locally in their devices or in the cloud via SkyDrive. It will also add the ability to take pictures from the lock screen via the device's camera directly from the lock screen.
In addition to this, the update will bring more colours and backgrounds including animated ones for the Windows Start screen and will even allow users to set their desktop background as their Start screen background. As reported previously, the Windows 8.1 Start screen would features new tile sizes including a new large and new small size.
3. Updated Search
According to Microsoft, Windows 8.1's Search charm will offer global search results powered by Bing in "a rich, simple-to-read, aggregated view of many content sources to provide the best "answer" for the user's query." Search will also offer "Quick actions" that include actions users would like to take, for example, play songs or videos. Results from local files, apps, and settings would be accessible in the same was as they are on Windows 8.
4. App Updates
Microsoft will be updating native apps to offer new functionality. The company mentions that the Pictures app will offer the ability to edit pictures and the Music app has been completely redesigned to offer a better experience and adds that it will also be introducing new apps shortly.
5. New multitasking experience
Following the Windows 8.1 update, users will be able to snap apps in variable sizes, as reported earlier. It will allow users to run three apps simultaneously on one screen and run different Modern UI/ Metro apps on different displays if connected, while keeping the Start screen on one display. Users will also be able to snap multiple windows of the same application.
6. Updated Store
Microsoft is also revamping the Windows Store to show more information with detailed lists of top free apps, new releases, and picks on the homepage.
7. SkyDrive improvements
Windows 8.1 will allow users to save files directly to SkyDrive and will offer an updated SkyDrive app that allows offline access to files.
8. Better PC Settings menu
Another issue that a lot of users faced with Windows 8 was that a lot of system settings were not available in the PC settings and they had to still go to the Control Panel on the desktop to access them.
Users will now be able to change their display resolution, set power options, see the make and model of their PC, change the product key, run Windows Update, and even join a domain directly from PC Settings.
9. New Internet Explorer
The Windows 8.1 update will bring a new version of the Internet Explorer browser. Internet Explorer 11 would be built for touch and would offer faster page load times in addition to several other new personalisation features.
10. Better handling of tiles
Users will be able to group and rearrange tiles more conveniently. They'll now be able to select multiple apps all at once, resize them, uninstall them, or rearrange them on the Start screen. Windows 8.1 will require users to press and hold or right click to move tiles around to prevent accidental movement of tiles. The update also brings the ability to filter apps by name, date installed, most used, or by category.

IEEE 802.11 WLAN Standards

IEEE 802.11 is a set of standards for wireless network to provide wireless devices with a communication in the 2.4, 3.6 and 5 GHz frequency bands. They are originally developed and maintained by the IEEE (Institute of Electrical and Electronics Engineers) LAN/MAN Standards Committee (LMSC).

The first standard was created by IEEE in 1997 and had been named as 802.11. It uses unregulated radio signaling frequency (2.4 GHz) but only supported up to 2 Mbps maximum network bandwidth. Specific physical layers that enabled three faster radio layers had been defined by subsequent amendments of IEEE 802.11:
802.11b
802.11b was created based on the specification of original 802.11 in July 1999, and it support network bandwidth up to 11 Mbps.
802.11b uses unregulated radio signaling frequency (2.4 GHz) as same as the original 802.11 standard. It provides 3 radio channels. By using this frequency, the manufacturing costs could be lower down. Because of unregulated signal, 802.11b could incur interference from other appliances using the same 2.4 GHz range, such as microwave ovens, cordless phones. However, the interferences can be avoided by installing 802.11b a reasonable distance from other appliances.

• Pros of 802.11b – cost is cheapest; signal range is very good and not easily to be obstructed.
• Cons of 802.11b – maximum speed is still slower; home appliances may interfere on the unregulated frequency band.

802.11a
A second extension to the original 802.11 standard was created and called 802.11a. Due to its higher cost, 802.11a is usually found on business networks whereas 802.11b better serves the home market.
802.11a supports up to 54 Mbps network bandwidth and provides 8 radio channels in the 5 GHz frequency band. Because of this higher frequency, the range of 802.11a networks is also shortened. In addition, the higher frequency also makes the signal of 802.11a to have more difficulty in penetrating walls and other obstacles.

• Pros of 802.11a – faster maximum speed; regulated frequencies can get rid of signal interference from other home appliances.
• Cons of 802.11a – expensive in cost; shorter range signal and more easily to be obstructed.

802.11g
802.11g was created to combine the best of both 802.11a and 802.11b and supports network bandwidth up to 54 Mbps. It uses the 2.4 GHz frequency for wider range. 802.11g is backwards compatible with 802.11b, which means the access point of 802.11g will just work fine with all the wireless network adapters of 802.11b, and vice versa.

• Pros of 802.11g – fast maximum speed; signal range is very good and not easily to be obstructed.
• Cons of 802.11g – cost is higher than 802.11b; other appliances may interfere on the unregulated.

802.11n
802.11n is the newest IEEE standard in the 802.11 family. It improves on 802.11g in the amount of bandwidth by using multiple wireless signals and antennas instead of one. This is a technology called MIMO (multiple-input multiple-output). It will also operate on the 2.4 GHz band. Presently the development of this standard is still in progress. But when this standard is finalized, 802.11n connections will be able to support data rates up to 100 Mbps. 802.11n also offers better range over earlier 802.11 standards due to its increased signal intensity.

• Pros of 802.11g –best signal range and fastest in maximum speed; more ability to resist signal interference from other sources.
• Cons of 802.11g –cost is higher than 802.11g; the use of multiple signals may massively be interfered by nearby 802.11b or 802.11g based networks.

Multiple RDP (Remote Desktop) sessions on Windows 8

Windows 8 Pro (as well as all previous Windows client OS version) allows only one concurrent user session. This means you can't connect via Remote Desktop if local user is already logged on. Normally it's not a problem on client machines, but it some situations you may want ability to login concurrently. A good example is a Media Centre PC when somebody watches a movie and you want to make changes to the machine without interrupting the movie.
To have multiple RDP sessions working you normally need server version of termsrv.dll file and also make certain registry changes.
Peter Kleissner has written and published a little utility which does all the job automatically. In case original source becomes unavailable, you can download version 1.8 from here. (Click Here To download) . If you are not keen on running unknown executables on your machine, source code is also available. You are welcome to inspect and compile it yourself.

Thumbnail Previews Not Showing in Windows 8 Explorer

And if I viewed a directory full of videos in Windows 8, I would get the same thing, just with the default video icon:


This was getting really annoying and I realized it was doing this since the time I installed Windows 8 on the PC. I’m not sure why it’s defaulted to this view instead of thumbnail previews like it is in Windows 7, but if you want the thumbnails back in Windows Explorer, here’s how to do it.
First, open Windows Explorer and then click on Options and Change folder and search options.

Next, click on the View tab and uncheck the box that says Always show icons, never thumbnails.

Once you get rid of that checked option, you should now get thumbnails for all your pictures, videos and even documents.

There is one other place that you can adjust the setting for showing icons or thumbnails in Windows Explorer. First right-click on Computer on the desktop and choose Properties. Then click on Advanced System Settings on the left side.

This will open up the System Properties dialog. Here you need to click on the Advanced tab and then click on Settings.

Finally, make sure Show thumbnails instead of icons is checked.

With these two settings, you should now be seeing thumbnail previews for pictures, videos, documents, and other file types in Explorer on Windows 8. If you’re still seeing just icons, post a comment here and I’ll try to help. Enjoy!

 

Windows Explorer Doesn’t Show Thumbnail Previews in Windows Vista and 7 and server version

Actually its a very common problem in Windows. Sometimes Windows Explorer doesn't show thumbnail previews for images and other files as shown in following screenshot:

It might be due to a bug or the user accidentally turned off thumbnails using Folder Options or System Properties.
Anyway if you are also facing this problem, you can use following easy fix to show thumbnails again in Windows Explorer:
1. Open Windows Explorer, click on Organize button present in command bar and select "Folder and search options".
2. Now go to View tab and make sure "Always show icons, never thumbnails" option is not enabled i.e. its disabled.

If the option is enabled, uncheck the checkbox and click on Apply button.
It should fix the problem. If you can't access Folder Options, you can use following alternative method:
1. Type sysdm.cpl in RUN or Start Menu search box and press Enter. It'll open System Properties.
2. Go to "Advanced" tab and click on "Settings" button in "Performance" section.
3. Now make sure "Show thumbnails instead of icons" option is enabled.

If its not enabled, enable the option and click on Apply button.
That's it. Now you should get thumbnail previews in Windows Explorer without any problem as shown in following screenshot:

Laptop Battery Tips

Laptop Battery Tips

Optimizing laptop battery usage is very important to increase the battery life and performance.

Following are the Top tips to optimize the laptop battery :

• Buy smart: Look for notebooks with low power consuming processors like the Intel’s “CULV” “Consumer Ultra-Low Voltage” processors or AMD processors with “cool & Quiet” feature.
• Dim screen brightness: Choose an environment with adequate lighting—less brightness means you’ll drain less power from your battery.Use the Function key (Fn) available in most of the laptops to dim the brightness.
• Run your applications wisely: To get the most from your laptop, even when multitasking on the go, run resource intensive applications just when actively using them. Then make sure to close the applications you aren’t using.Running Video on the laptop will consume the battery very fast.Avoid to run video almost all time.
• Close unused applications: Programs will still use power while sitting idle.Also some unrequired background processes can  be closed using the task manager.Stop such processes from starting at boot.
• Have the right RAM for your needs: With appropriate RAM, instructions run off memory instead of disk. Less power is needed to refresh the RAM than to spin the hard drive.So increasing the RAM in in the laptop with high resource usage works will highly improve the battery life.
• Clean your battery: Rub the battery’s metal contacts with rubbing alcohol every two months. Allow to dry before re-inserting.
• Remove extra accessories: Unplug items like PC cards, USB and FireWire devices that are not being used.
• Use built-in power management devices: Enable this feature and set your system to “Battery Optimized” mode or “Max Battery” mode. Put your computer to sleep earlier and turn off the screen backlight sooner.Start > Control Panel > Power Options (in Classic View).
• Disable Wi-Fi and Bluetooth if not being used: Wireless LAN and Bluetooth access uses power even when it is not in use. Transmitting and receiving data drains the battery.
• Defragment your hard drive regularly: The built-in defrag utility included with Windows  will take your file fragments and put them closer together on your hard drive, which will decrease hard drive access times and save battery life.
• Use Direct Power as much as possible : Keep your laptop connected to the direct power supply using the laptop power adapter as much as possible.
• Connect laptop to UPS supply : If possible then connect your laptop to UPS supply.This will save your laptop from power fluctuations and if there are frequent power cuts then your laptop battery life-cycle will not be wasted.
• Use battery only when on move : Try to power laptop through battery only when you are on move or if there is no power supply.

SMPS Problems and Solutions

SMPS Problems and Solutions

SMPS

SMPS Internal

What is SMPS ?

SMPS - Switched Mode Power Supply. An SMPS is  a Device to efficiently provide a regulated output voltage, from  different level of  the input voltage.S MPS transfers power from a source like the electrical power grid to a load  (Eg: Computer).

SMPS Connection Diagram

The SMPS in a conventional desktop system is designed to convert the 220V AC, 50HZ into +5V, -5V, +12V and +3.3 V DC

Diagram -SMPS

Tips For Power Supply Service

1. Be sure that the line- voltage  switch(120/220 Vac) is set correctly for your region.

2. Do Not Use a Splitter

3. Be sure that each output is within tolerence(Volatge tolerences are usually +or-5%

4. Verify that the power-supply connectors are attached to the motherboard drivers

5. Check the AC Input voltage with the help of a Multimeter

Troubleshooting SMPS

Problem 1: The Power doesn't come on.

Solutions

1. Check the Power from the wall socket

2. Check the Voltage Setting On the CPU

3. Check the  Power switch  of the Cabinet and  Front Panel of MotherBoard

4. Check the Power Supply Connections to the Motherboard

5. Check the SMPS without connecting it to the motherboard, you could see the two wire green and black which you have to short them (using any piece of wire/paper clip) in the 24 pin motherboard connector of the SMPS.

  Problem 2: The PC Powers on after the second or third try

Solutions 

1. Check the  Power switch  of the Cabinet

2. Replace  SMPS  (Get a Better Quality SMPS)

 Problem 3: The PC Powers on but nothing happens after that (no beep)

Solutions 

 1. Remove the last hardware component installed and check again

2. Replace  SMPS  (Get a Better Quality SMPS)

3. Check the power cables to the  Devices(Harddisk, DVD Drive etc)

 Problem 4: The PC Powers on beeps and stops. NO Power On Self Test (POST)messages

Solutions 

1. Check with another SMPS

2. This may be a Motherboard Problem.

 Problem 5: The PC Powers on runs POST but there is no display

Solutions 

1. Check the Monitor and the VGA Cable Connectons

2. Check with another SMPS

3. This may be a Display Card Problem

 Problem 6: There is a squealing/whistling/whining noise from SMPS when the PC starts

Solutions 

1. Check the SMPS Fan

2. Component problem with SMPS. Replace it 

Problem7: The PC freezes or reboots suddenly

Solutions 

1. Check the SMPS Fan (May be overheating Problem)

2. Replace the SMPS

Computer Hardware Troubleshooting Guide for beginners.

Here are some techniques to solve common computer hardware problems. I used to do these techniques over 15 years. In my experience, I would like to say "don’t panic to decide anything at a glance of view". Take your time and decide the right.

Most common problems in computer hardware are, loose connections. So first try to tie up all peripherals, connectors properly before do anything

First I would like to say, this Diagnostics tips are not for the servers, this is just for the desktop Computers. OF course, some remedies are applicable for the Notebooks also.

The most reliable way is, try to isolate the problem by using compatible peripherals from other computers. (If you are a trainee hardware technician, it’s better to have extra standard PC peripherals with you for testing purpose). In this way you can isolate the defective part(s) easily rather than guessing. But of course, keeps in your mind that, if you isolate the defective part(s) don’t forget to fully test the PC with new part(s). It because’ sometimes there may be another problem in addition to this defective part(s). And don’t forget to Re-test the faulty part. And always do test one at a time.

Here are some precautions before the Diagnose or troubleshooting.

1. Never replace a Computer peripheral, when main power code is connected to the power supply.
2. Never touch a Computer peripheral with wet or sweat hands. Keep your hands clean when you handle them.
3. If you can always use an anti statistic computer repair kit.
4. Always use the proper tools.
5. Never use teeth to clean or cut wires or any other electronic, electric parts.
6. Always have a good power codes/ extension board and earthling system with your house/Office power system.

So here we go…

No Power

1. If computer doesn’t power up at all, Reset the BIOS first and try.
2. If still not power up, disconnect all the peripherals and wire harnesses except, Processor, and power supply, then try to switch on from mother board’s front panel connector.
3. If still not power up change the power supply and try.
4. If still not power up remove the mother board with processor from Casing and lay it on antistatic surface and plug a power supply and try.
5. If still it’s happening same problem, replace the processor and try.
6. If it’s not work it because faulty mother board.

Power Comes but no Display

1. Remove the RAM card from the mother board and clean it with rubber eraser and re-plug it and try.
2. Replace a RAM card and try.
3. If it’s having both separate and On board VGA, pull the separate VGA card and try with On-board’s VGA out.
4. If it’s having a separate VGA card, Remove the VGA card from the mother board and clean it with rubber eraser and re-plug and try.
5. If it has only separate VGA card replace the VGA card and try.
6. Reset the BIOS and try.
7. If still not Display, disconnect all the peripherals and wire harnesses except, Processor, RAM card (VGA card, if available) and power supply, and then try to switch on from mother board’s front panel connector. (If computer has separate VGA card and on-board VGA as well, proceed with onboard VGA until isolate the defective part).
8. If still no display, remove the mother board with processor, RAM card and VGA card from Casing and lay it on antistatic surface and plug a power supply and try.
9. Replace the processor and try.
10. Replace the Power supply and try.
11. Still it’s not display means faulty mother board.

Display comes, OS not loading.

1. Check if any abnormal sound comes from the Hard Disk drive. (If so it’s a faulty HDD).
2. Check whether Cooling FANs are working in order.
3. Re-plug all HDD connectors and try.
4. Replace the HDD interface cable and try.
5. Check whether HDD is detected by Mother board (Drive details on the BIOS) if not use a another HDD port (SATA or IDE) on mother board.
6. Reset the BIOS and try.
7. If you have a spare HDD attach it with the faulty PC and check whether mother board detects it.
8. Try to start with safe mode or Last known good configuration mode, by pressing F8 at the startup, if it’s restating.
9. Check the HDD mode (ACHI or IDE) on Advance chip set settings in the BIOS and set the proper setting.
10. Detach if PC has DVD drives, additional Add-On cards and USB cables and try.
11. Replace the RAM card and try.
12. If it’s a windows PC, Remove the HDD from the faulty PC and attach it with healthy PC as a secondary HDD. If that HDD is having a problem with file system, it will run the scan disk utility automatically. After run the scan disk, shut down the testing PC gently and re attach the faulty PC and try.
13. If you are in a position to reinstall the PC at once without doing any software solution do it right now or do fresh OS installation with another HDD.
14. If it’s a hardware error in most cases now you will face it while installing the OS. In such case you have to replace and try with RAM, HDD, Processor and (Separate VGA if you have).

Computer is restarting or getting off, automatically. (Occasionally).

1. First before replacing anything checks the all Cooling FANs are working properly.
2. Re-plug all the Connecters tiredly and Clean all the contacts of RAM, VGA and Other Add-On cards with rubber eraser.
3. Disconnect the HDD and switch on the PC and let it run. If it runs for considerable time, most probably power supply is OK.
4. Then re-Attach the HDD and Run a scan disk for HDD and check.
5. Run a third party RAM test.
6. Disconnect USB cables or any other Add-On card and test.
7. If it’s having a separate VGA card On-board VGA card, try on On-board VGA card. Otherwise replace the VGA card and Try.
8. Disable any Power saving feature or Screen server on the OS and try.
9. Update the Latest BIOS version for Mother Board.
10. If still happens you have to replace RAM, VGA card, Processor, HDD, HDD interface cables ultimately power supply. Replace one at a time and check.
11. After replacing a peripheral, here is some test run I always do for detect these types of errors. Create a note pad Document and write this syntax ( Dir /s “pres Enter” a.bat) save it on the desktop and exit while re-naming this file as a.bat (.TXT extension should be .BAT) then double click on that icon and it will run. Right click again and again on this icon. Then it will run number of sessions. 50 sessions is enough. In this way you can make the busy on PC and test whether Problem is Solve or not.

How we deal with faulty parts?

If you found faulty VGA card, RAM card and Mother Boards, don’t forget to wash with fresh water and dry it well and try again. (If not they have any warranty).

Same time if you have a facility to resold the circuit boards of defective Computer part’s (Chips and Chip’s soldering spots) (such as Mother boards, RAM cards, VGA cards, Processors, HDDs Circuit boards) from a heat blower, do it and try. And most of the time you may see defective capacitors, in that case if have a little ability to replace the Cap, can do it by yourself (If not they have any warranty).

if you got defective power supplies don’t discard it. Open the power supply box and re-sold the circuit board and try. (If not they have any warranty).

10 Common Computer Problem & Solution

Every computer user may face some kind of problem, when they run their computer. But who have face no problem I think they are luckier. But who have face problem, they solve the problem. That’s why they get more knowledge on trouble shooting. But sometime some problem may be you can't be solved. Then you may fall in tension. That time you need to contact with a computer expert. Today we are going to describe some common computer problem. I think you may face this kind of problem or if you face this kind of problem that time you will get help from this post. Actually most of the problem is occur by virus, user carefulness. Virus you can prevent by antivirus. Remember try to update your antivirus. But other problem you need to solve by yourself or with an expert .Now let’s go to see some common problem and solution.

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Problem 1:

My Bios Setup is Hidden or I cant show my BIOS setting

Reason: N/A

Solution: Open your CPU cashing and remove the CMOS Battery for 30 Minute. And again put it the correct place. Problem May solved.

Computer Hang:

Reason: Problem with Ram Chip

Solution:Check your Ram chip.

Hints: If your RAM chip have some problem that time you will face some common problem,Like :Display ,computer hang,Restart.You may unable to set up windows if you have problem in your RAM chip.

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Boot Disk Failure/Missing Operating system:

Reason:

1. May be problem with Hard Disk IDE cable or sata cable.

2.Hard Disk Crash

3. System File Crash

Solution:

1.Open your CPU cashing & check your cable.If you find problem, replace with good one.Or try to check it with another cable.

2.If you think Hard disk crash then try to check it with another good one hard disk.

3.If system file missing then reinstall windows in your computer.

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For get my BIOS Password:

I think everyone who have use BIOS password sometime they may face this kind problem.When user face this kind of problem then fell very anxiety. But I want to say dont think about this you can solve this problem within 10 minitue.
1.Frist open your CPU cashing and remove the CMOS Battery for 5 minitue. Then Put it back the correct place.I think Problem is OK.If you face this problem again then you follow the 2 step:

BIOS CMOS Battery BIOS Jumper.
2. If first method is not work then second method is the final solution for this problem.In this method you to need to work with BIOS jumper. You may think you don't know bios jumper.OK ,I am showing You.But if you worried about this ,then take help from an expert.Just open the jumper and set it other 2 pin.Suppose now your pin is 1&2 then use it 2& 3 then restart your computer.Then you can see your BIOS is reset with default setting.Then back the jumper again 1&2

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I shut-down my computer but it again restart.

I see this problem face many of my friend and user.
Reason:Power supply is not OK.May be problem is power supply.
Solution: Replace the power box with new one.

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Restart Problem:
Note: Actually there are many reason for computer restart problem.But common problem is:
Reason:
1.May be your RAM speed and motherboard speed is not matching.
2.May be your CPU cooling Fan is not OK.
3.Power Supply is not OK.
4.RAM chip problem.
Solution:
1. Try to use a RAM which speed is match with motherboard.Suppose you use a ram 1333MHz [DDR3] But your motherboard is not supported that, then you need to use a RAM which is compatible with your motherboard.
2.If your CPU cooling fan is not OK. Then Check it and replace with a expert.
3. If power supply is not OK, Then you may face this kind of problem.
4. If you find out that Problem is RAM chip then try to use a new ram to check your RAM port.
5. May be system file is missing try to restore it.

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I Cant Find out start menu and Desktop Icon

Sometime you may face this kind of problem.And if you face this kind of problem then you will unable to enter any disk drive or run any software.Just you can see only your desktop.

Solution: Press Ctrl+Alt+Delete.Then Application click on New Task And write explorer.exe


Then OK. Your explorer will come. Now you can see your my computer and desktop icon.

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Windows starts very slowly

Reason:
You install many program which create a icon in task-bar and boot with start up.
Solution:
Press Start+R. In command box write msconfig. Then one dialogue box will come click on startup. now unchecked the program which you want to prevent run with windows startup.
Here we are showing the process. But if you want to know with screen shot click here.

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Dispaly:
Problem: CPU on but No Display
Reason:
1.Motherboard spoiled.
2.Problem in Processor.
3.Ram Chip.
Solution:
1.Replace your motherboard.
2.Check your processor by other one if possible.
3.Check your RAM chip.If you find any problem then replace with new one.

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Problem: 1. Boot Disk Failure & 2. press Ctrl+Del+R to continue

Boot Disk Failure:
1.Reason:
1.lose connection in IDE or sata cable.
2.Hard Disk Crash.
solution:
1.Check your IDE or Sata cable connection between motherboard and Hard Disk
2. Replace your Hard Disk.
*** Boot Disk Failure ---Press Ctrl+Alt+Delete to continue or Press Ctrl+Alt+R
Note:If your motherboard cant read your Hard disk and operating system that time it show this kind of message.
2.Reason:
1.Windows Crash
2.Hard Disk Crash
Solution:
1. Setup your windows again.
2. If you you find any problem in your hard disk then fix it or replace it.

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I cant save my BIOS setting
Reason:
1. BIOS jumper may be Disable.
2.Battery is Low.
Solution:
1.Check your BIOS Jumper and enable it.If you are not expert. then take help from other.
2.Change the Battery with new one.

Intel 4th Generation Processors Advantages

Intel Haswell chips launch with better performance, longer battery life

Intel is launching its 4th generation Core processor family, and we should start to see computers based on the new chips at the Computex trade show starting June 4th . Code-named “Haswell,” there’s honestly not all that much we didn’t already know about these chips. Intel’s been talking about them for months.
But soon we’ll start to see laptops, desktops, tablets, and other devices powered by Haswell processors. Intel has also started sending out some test devices, and you can find some initial benchmark results at CNET and more detailed specs at Engadget.
While Intel will offer dual and quad-core chips for a range of different types of computers, there are two big stories here: Haswell chips use less power than their predecessors, and offer better graphics. That means the mobile chips are ideal for ultrabooks and detachable tablets, while beefier laptop and desktop chips could replace the need for discrete graphics cards… for some users.

In terms of mobile performance, Intel has reduced power consumption in a few ways.
With 3rd generation Core (or “Ivy Bridge”) chips, a 17W processor actually used closer to 20W thanks to the separate chipset. Now everything’s in one package, and total power consumption for an equivalent Haswell chip is about 15W.
There are also some chips that will use even less power, but clearly they won’t offer quite the same level of performance.
In addition to cutting the TDP though, Intel has also made some changes to the way the chips work so that they use less power while idle, while playing videos, and while in sleep mode.
For instance, a Haswell computer can continue to hold data in standby mode for up to 13 days, which is about 3 times as long as a model with an Ivy Bridge chip. A system with a Haswell chip also uses just about 6W while playing video, compared with 9W for Ivy Bridge.
So while the TDP is down by 25 percent, Intel says we could see battery life improvements as high as 50 percent. The company is promising ultrabooks with Core i7 processors that could play videos for 9 hours straight.

In terms of graphics performance, models with Intel HD 5000 graphics should offer about a 40 percent boost over Ivy Bridge. That should let you play many older PC games and some newer games without a dedicated graphics card from AMD or NVIDIA. For instance, the latest Tomb Raider game is playable at a 1366 x 768 pixel resolution.

Move up to a model with Intel “Iris” graphics, and you can play the same game on a 1920 x 1080 pixel display. But those chips will be more power-hungry, with TDPs 28W or higher. You’ll probably see the biggest improvements in graphics performance in high-end desktop chips which can use up to 84W of power.
As CNET points out, the truth is most computer users don’t actually need a faster processor. Serious gamers will probably continue ot want devices with the latest dedicated graphics chips, while casual users will find there’s virtually no application that you can run on a Haswell system that you couldn’t run on a model with an Ivy Bridge or older chip.
That means that the introduction of Haswell simply means it’s a good time for bargain-hunters to snap up the Ivy Bridge-powered computers that will start see price cuts in the coming months.
But some CPU-intensive tasks such as processing images in Photoshop, encoding media files, or rendering video effects will be faster on a Haswell system.

More importantly, Haswell’s improvements in power efficiency mean that we’ll see mobile computers with longer battery life and interesting new designs that bridge the gap between tablets, notebooks, desktops, and phones.

Meanwhile the improved graphics performance enables support for next-generation technology such as monitors with Ultra HD display resolutions.
While the Haswell line of products will power the next-generation of high-performance notebook and desktop computers, Intel is also planning to offer chips that use even less power (and lower price tags) as part of the next-generation Celeron and Pentium families.
The last few Celeron and Pentium chips from Intel have been based on the same technology as the company’s Core chips, but new versions based on the Silvermont architecture used in Intel Atom “Bay Trail” chips are expected to launch later this year.
It’s interesting to note that rival chip maker AMD isn’t even trying to go after Intel’s top-of-the-line chips this year. AMD’s most powerful “Richland” processors are only expected to offer the kind of performance you’d expect from a Core i3 or Core i5 chip.
Instead, AMD seems to be hoping to undercut Intel on price while offering chips with decent performance for mid-range devices including tablets, notebooks, and hybrids.