Quick Tip: How to correctly shut your computer down

Computers can be quite fickle in operation, and in extreme cases, a user may work on a PC that seems to have a mind of its own by shutting down at random integrals. Fortunately there are several troubleshooting tips you can use to save your computer and increase your device's performance.

Running the Computer Check Disk Function
1. Determine whether you are using Windows XP or Windows Vista. XP users can simply click on the "Windows Start Button" and then go to the "Run" link. Once run pops up type in "CMD" and hit enter which will cause the MS DOS prompt to appear. Type in "CHKDSK /r" which will check for hard disk errors. Vista users need to click on "Start" then go to "Accessories" followed by "System Tools" and then run the MSDOS program followed by "CHKDSK /r"
2. Insert your restore CD if errors are found and not fixed by the check disk function listed above.
3. Turn your computer off and then back on. You'll be asked to hit any button to boot from your CD; press any key. You will then be asked if you want to install a fresh version of your OS or "Repair" a current copy. Choose the "Repair" option and allow the computer to go through the necessary steps.
4. After the repair function has run, turn your computer off and then back on. Wait and see if the computer shuts down again. If it does not shut down, your computer's restore function has fixed the file, which was probably caused by a bad system file.

Fixing Computer Shut Downs Via The Powersource
1.Check if your powersource is properly connected inside your computer. Your powersource is the large box that your computer's powercable plugs into. If this connection becomes loose, it can lead to powerdown issues.
2.Unplug your power source and plug it back in. Also make sure that the correct power setting "The little red tab on the back of the box" is set to the proper manufacturer's defaults. If you have any doubt what this setting should be, call the manufacturer for assistance.
3.Have your power source tested at a local computer store if the issue persists. A computer tech can check for any faults in the power source and tell you if you need to purchase a new power source.

Fix Your Computer With Virus and Spyware Apps
1.Download a virus scan if you don't already have one on your computer. "AVG" is a great free option as well as a Spyware App such as Adaware, which can be found at Download.com (see Resources).
2.Install both your virus scan and spyware applications by following the simple installation instructions.
3.Run both the virus scan and spyware applications and tell the programs to "Heal or Remove" any infections that are found. This should help with shutdown issues if your computer is infected by certain programs.

I hope you find it very helpful. Best regards.

Copied from one of my earlier solutions:

Here are some tips for speeding up a computer:

-Remove programs from your Windows startup by pressing Win+R and typing msconfig.
-Uninstall programs you don't need
-Use CCleaner to clean up unneeded temporary files
-Disable windows services (look up a guide on Google for a list of services you can safely disable)
-Keep your software up to date.
-Look for suspicious processes in your task manager and Google them to see if they are viruses.

These tips won't help much if the slowness of your computer is caused by a specific problem like a damaged part, but they usually make your computer a little more responsive.

If you have any specific issues that could be causing this, list them here.

Try using a different (non-virus-infected) computer.

Be sure that you're accessing the "official" web-site, not a "phishing" (and "unauthorized") copy of the financial web-site.

Upgrade to Internet Explorer 7 or 8.
Start IE, and click 'Tools' and 'Manage Add-Ons',
and disable unneeded toolbars. Close IE, and re-open it.
Now, try to access that web-site.

There are usually three main reasons that a CMOS Checksum Bad Error has occurred. They include:

• CMOS Battery may not be functioning properly. The battery life may have expired.
• Your BIOS may have been updated (either by user or possibly a virus)
• The computer may not have been shut down properly e.g. shutting off the computer's main power without first shutting down the computer (MS Windows requires you to shut down your computer before shutting off the power).

Solutions to CMOS Checksum Bad Error The CMOS Checksum Bad Error can be fixed easily by following the listed steps carefully.
CMOS Battery may not be functioning properly
If you suspect that your CMOS battery is not functioning properly, you can easily change it. Before changing your battery, reboot your computer to make sure that the error still exists. If it does, go into your CMOS and write down all of the settings. If all the settings are lost, you can usually retrieve them from your computer manufacturer. Now locate the battery and remove it, you might need to consult your computer’s manual or technical support to remove your battery (the battery a flat, shiny silver colored and coin-shaped). Take down the CMOS battery’s information such as volt, size, etc. Once you have your new battery, you can replace it and reenter your CMOS settings. If your battery was the cause of the CMOS Checksum Bad Error, you should have solved the problem.

Your BIOS may have been updated
If your BIOS have been updated recently, your CMOS settings may have reset. Make sure that the values entered in the BIOS are correct or simply reset them to the default settings. If you believe that a virus has updated your BIOS settings, run a virus scan and make sure that the BIOS settings are back to the default.
The Computer may not have been shut down properly
Sometimes when running MS Windows, if you shut down your computer without first properly shutting down your operating system, it will corrupt the CMOS settings causing the CMOS Checksum Bad Error. You can easily avoid this error by making sure that you completely shut down your computer properly before turning off the main power. Usually this entails going into the Start Menu, clicking on Turn Off Computer/ Shut Down. If improper shutdown was the cause of the error, you may have solved the issue

Afraid there is no simple answer to this. This set has multiple things that could shut it down, one may be the balest needs a upgrade , this could be why it seems to be eating lamps. Another is what sounds like a fan is a color wheel , these have known problems of failing, and when this happens sometimes they shut down the set. And finaly does the set have good ventalation, overheating can cause huge problems with this set