Im missing file C://Windows/System32/PCPBIOS.EXE is this file inportant?

If so how can it be repaired or replaced?

I have not turned off my computer yet because im scared it won't start up agin.

I think it might of been recently deleted when I deleted A virus, please help.

Is that the full error you receive?

It usually goes with an autoexec.nt error. If so try the following:

http://support.microsoft.com/default...b;en-us;324767