My Dell Dimension 8200 PC keeps re booting itself once it gets to the home page. i cant even hit the start button cause it restarts itself that fast! please help

Windows is completely corrupted, you will have to reinstall it. Use the recovery disk that came with the pc when you bought it.

Your operating system or Master Boot Record is corrupt. Which version of windows are you using?

It may be possible to repair the problem with your windows disk. Boot from the Windows disk but make sure you read the instructions for windows repair carefully because some options will format your hard drive.

To rescue the data here are some things I do:
Make a boot disk with USB support and transfer the contents of your drive ton an external harddrive. Or, you could place your hard drive in another computer as a slave drive and retrieve your files that way.

if you have the windows xp disk, boot from it by pressing F12 upon turning on your computer. press 'R' to choose recovery console. you might be asked which windows installation you want to start, just press 1. when you see the console, enter the command 'fixboot' without the quotes. then type exit to restart your computer. hope it helps.

the os on the harddrive is not recognising the hardware and could be caused by change in bios settings or bad os.

Hello,
Check your fans o see if they are running and if the PC isn't getting too hot because that will cause it to stop and not boot up.

check the power supply.

If it is ME or XP, tap the f8 key rapidly as you boot and it should go into safe mode. You can do a restore from there.

Easy fix! Put the windows boot disk in the optical drive. It will either start up of you can re-install windows. Easy Solution!

Try a new power button. Also does the machine power light turn on at the front of the machine? if so check that the CPU is seated correctly as if it has come out of position then the machine doesn't boot. I would like to think power switch though.

Thanks J

start in safe mode, and uninstall