Mc Afee detected some virus on my PC and they were deleted. But after a restart my keyboard and mouse are not working. I cannot even attempt safe mode because key board is not functioning How do i solve this Thanks in advance Telemachus sbasti01

Have you tried booting with your XP setup CD? You may need to remove the CMOS battery and reset BIOS to defaults.

Are these a STANDARD keyboard and mouse, or after market setup plugged into USB? The STANDARD PS2 keyboard is recognized at the BIOS level, while a lot of the USB keyboards are not recognized until USB drivers are loaded. If it's a standard ps2 keyboard/mouse and it's not working then STREET is right... you will have to reset your bios. If it's usb then your best bet is to get a hold of PS2 keyboard and use it to reinstall the missing/infected drivers.

I am using standard mouse and not USB mouse Let me try the steps suggested by Street 1 Thanks Blackbill & Street 1 Telemachus sbasti01

Tried to reinstall winxp prof. Keyboard and Mouse working but stops exactly when i try to enter the Win Xp key How to upgrade bios ?? Now PC is asking for windows xp cd when i boot in and the cycle repeats sbasti01

We haven't really discussed upgrading Bios. You need to reset your BIOS by removing the CMOS battery or using the motherboard jumpers. http://www.smartcomputing.com/Editorial/article.asp?article=articles/2004/w1510/32w10/32w10.asp

Do not "upgrade" the bios, in 99% of cases firmware updates are non-reversable. Try using a usb keyboard as a test to see if its your ps/2 kb or the mobo is at fault. If your computer says, "Printer out of Paper," this problem cannot be resolved by continuously clicking the "OK" button.