My computer doesn't turn off

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.

though your problem is not clear.. still i get that you arte having problem with shut down and turn on. from my knowledge you are under virus attack. get autorun virus remover immediately. install it. scan for viruses. fix it. find a good antivirus(with internet security) eg. avg. install it scan all files. deleate all effected files. reinstall os and reinstall the antivirus and autorun remover.

Try bootin to safe mode by pressing F8 on turning on the system then try to uninstall by going into the control panel [Programs(vista)/Add or Remove Programs(XP)]

By doing this you will be able to uninstall the AVG anti virus.
Then restart and the system will boot in normal mode then install Kaspersky. Never have 2 anti virus in a system. Just a word of caution.
Cheers !

AVG may be reporting the virus that is in your system restore folder. This is common with AVG. Her is a link to Microsoft's site explaining how to turn it off and back on. Once you turn off System restore, reboot the PC and turn it back on. Run AVG again and the virus will probably be gone.
http://support.microsoft.com/kb/310405

XP

Use system restore to a restore point before your computer crashed. AVG is one of the best antivirus programs out there. I even recommend it.

If your are using Vista, insert the DVD and boot from the CD/DVD. When you get to the install page select the repair your computer option.
From the options select System Restore.

On a personal tip:

I am currently using BitDefender Tolal Security and I am recommending this one also.
If you have formatted your harddrive, then you are SOL!!!

why not reinstall sp3 again for windows xp if it freezes then it might be looking for files that don't exist anymore. If the virus attatched itself to your files they may have been removed when you ran your virus software. you don't need to format to reload windows. Just simply do a clean reinstall on C drive.

The file “Windows/System/Drivers/mup.sys” is not actually causing the problem. It’s the next step after mup.sys that’s causing the computer to hang. That next step consists of the OS checking the registry files for plug and play devices.
Some causes are: new or defective hardware installed, corrupted registry, (caused by virus), defective or corrupted hard drive, just to name a few.
Try removing all devices attached to the computer like printer, web cam, flash drives, etc.
If your computer has a PCI or AGP graphics card AND your motherbrd has a VGA connector, remove the video card and use the one on the motherbrd.
If the above doesn’t work, try running “CHKDSK /P” from the Windows recovery console.



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Thank You.

The only way to get a reliable anti-virus is to purchase. Use the control panel - add/remove and uninstall any avg programs. Then run msconfig - startup and disable any avg program. Reboot. See what happens. Purchase an anti-virus and load that.

HI,

Did you install sp3 just now.Or were you using it before this problem occured.Let me tell you one thing the sp3 is not yet ready fully most of the people are facing huge problems with it.I suggest you to switch back to sp2.Or you can try reinstalling ur sp3 once again.

Goodluck..

download AVG anti virus it got more power anti virus for a free price... just a suggestion...