Hi.
i have a serious problem with my PC..i was working normally..my brother had installed some kind of spyware remover or some sort of computer protecting software..I then removed those programs using control panel add/remove programs..then i restarted my computer..but when i log on...as soon as i log on..the computer monitor displays logging off and it goes to the same point and i cant even enter to the desktop because it logg off immidiately as soon as i log in..I am really worried because of this..and i am just a beginner to PC's...pliz suggest a step wise process to recover this...i would be really greatful to you guys!!
hoping for immediate response

Without knowing what your brother has installed and what you did to uninstall them, our ability to help you is limited. This leaves you two choices:

1. Invoke System Restore back to the day before your brother installed the software, or

2. Force your brother to fix your computer or else buy you a new one.

i_Xp/VistaUser

If you do not have an OEM system like Dell, Emachine, Compaq, etc. You can use your 'Microsoft' (not OEM) install CD to do a repair install.

Repair install instructions
http://www.microsoft.com/windowsxp/...

You should not lose any of your data, but you will lose all the windows updates.