Help: Remove Virus

[VINSTAR]

i am using xp sp2
i canot access task manager and regestry editor
when i try to access this i get message that
"Your administrator has blocked task manager"

and computer restarts when i try to get into safe mode

i've installed Kaspersky AntiVirus2009
when i try install any software thats already copied in harddisk
KAV shows a message that its like a virus and trying to install a driver from c:\windows\system32
and computer get hanged and nothing can be done
then i need to press the RESTART button
when i scan that file KAV is not detecting it.....

[ravi_9793]

can you do online scanning:
http://www.techhunt.org/node/72

[rhitwick]

O.K.
Check here, LINK
Its FAQ of our S/W troubleshooting section.
Ur problem is attended in the first question

[VINSTAR]

[[when i try install any software thats already copied in harddisk
KAV shows a message that its like a virus and trying to install a driver from c:\windows\system32
and computer get hanged and nothing can be done
then i need to press the RESTART button
when i scan that file KAV is not detecting it.....]]

its affected with virus.....
anybody know its name ?????????
even if i reinstall xp its still there.........