I wasnt sure where to put this

[Marbles]

Last night i left my computer on, when i went to bed at around 1, then this moring it was on the login screen so i guessed that it had updated or something, so i log in and it tells me that new hardware was installed or something and then just as its about done loading my homepage it restarts again, and then goes back on to my login screen so i press it, and it restarts again, and so on and so fourth, and i dont have any idea what to do.

[ktkendall]

Sounds like you may have had something go bad hardware wise, or you got infected with a virus.. Try to boot to safe mode and let us know if that works..

[Marbles]

Alright, its just upstairs so i should be back in a few

[Marbles]

nah, i hit F8 and safe mode, and all it did was a list of things, like multi(0)disk something like that.

[Marbles]

Any other Suggestions? anyone?

[scomac]

That's normal when booting up into safe mode. After it does that you should get a logon screen with the accounts. Click on Administrator and it will take you to safe mode. Once it gets into safe mode, do as ktkendall suggests.

Scomac

[glc]

A login loop is indicative of certain spyware.

The official troubleshooting methods are these ones,

Unable to Log On To Windows XP After Removing wsaupdater.exe
http://www.lavasofthelp.com/articles/v6/04/06/0901.html

Unable to logon to Windows after removing BlazeFind using a spyware removal utility?
http://www.winxptutor.com/wsaremove.htm
===============================================

If they fail for you, then you can try these things,

If your System Restore was tunred on, then you can try to use this method to try a system restore from command prompt !!
HOW TO: Start the System Restore Tool from a Command Prompt in Windows XP:
http://support.microsoft.com/?kbid=304449

if it produces the same results, then here is a long and hectic procedure available to restore the registry so that we can use System restore to roll back out system to the time when it was working fine !!
How to recover from a corrupted registry that prevents Windows XP from starting
http://support.microsoft.com/?kbid=307545

If you can get the system back in this way, then great, otherwise you a Repair install..... it will not delete your data and programs, and will replace the windows system files and registries only

How to Perform an In-Place Upgrade (Reinstallation) of Windows XP:
http://support.microsoft.com/?kbid=315341

How to Perform a Windows XP Repair Install:
http://www.michaelstevenstech.com/XPrepairinstall.htm