Is this a lost cause?

Dave, gmer will not download. When download screen pops up it say it has downloaded 0 bytes of 0 bytes. Bob

unsucessfull downloading win32kdiag.exe. Both commands,you gave me will not work."not recognized as a internal or external command, operable program or batch file

I did not do last direction yet, however I was able to run eset in normal mode and this was result of scan: C:\Windows\System32\drivers\atapi.sys Win32/Olmarik.OF virus unable to clean

I ran eset in safe mode. Could not save log. It deleted about 8 infections. Could not run superantispyware. If this helps, when I try to open anti-virus software on my desktop...I get "windows cannot ...