Anti Virus error

I have Windows XP SPII.

i have been facing a lot of problems with it recently.

I had Avast installed and one day the installation got corrupt and i got error that there is a virus infection .

I ran many different virus removal/spyware removal tools but nothing.

I formatted C: and installed everything again. The moment i tried to installe Anti Virus i get the same proble,. The AntiVirus cannot be installed due to a possible virus infection.


Now i did a complete Fdisk and created partitions again and reinstalled windows.

it worked only iinstalled Avira anti vir.


it all worked until 4 days ago.

Bugger me the same problem.

The AVcenter.exe cannot be stated . this could be due to a possible virus.

I ran trend micro online scan and even avira's virus removal tools.. Nothing.


Now I reformatted but still the same issue..

Cant install any Antivirus.. not avast,not avira, not avg.

I am ready to do a complete Fdisk-format but i am bugged.. is there any way to solve this?