Hi all, This is my first post and I am sure will not be my last lol I have a friends XP SP3 pro desktop that got infected with the Rootkit.zeroaccess virus plus a few others. I removed them using a kaspersky boot rescue cd and also ran malwarebytes and combofix. My problems started after rebooting back into xp the explorer.exe errored and even trying to start using task manager run command gave the same error i tried for hours to find a way to fix this error but gave up and did a xp repair using a XP SP2 pro disk that he had. the repair errored on access denied copying the following xp files during the repair install: cmmgr32.exe migwix.exe muzapp.exe xpsviewer.exe when the repair finished xp booted to the desktop all icons were back but no taskbar (or off the bottom of the screen) my problem now is I cannot install SP 3 because the cryptograghic service is not running also the RPC service is not running (could not start the RPC service access is denied error 5) Opening services i can see that alot of services are not running infact only about 12 are running. It is not possible to right click properties on the services (nothing happens). I managed to get the pc back on the internet using winsockfix I think also the nvidia drivers are now damaged or corrupted but cannot install or uninstall nearly anything because i get the error windows installer may be running in safe mode. error your version of vbalsgrid6.ocx may be outdated now when trying to run malwarebytes. basically its a big mess and i dont know where to go from here. I cannot do a fresh re-install as my friend has loads of programs that he has had for years that he cannot get again. and a lot of user settings for those programs. any suggestions please. I have at my disposal a UBCD4win and another xp pro sp3 desktop that im typing this on. I was thinking of running a repair using my oem xp pro sp3 cd to see if it improves anything?