I just installed Avast! Home, it did the initial scan in DOS mode at bootup. After rebooting, I can’t launch ANYTHING! When I try to start any program, XP gives me the following message: “Windows cannot access the specific device, path or file. You may not have the appropriate permissions to access the item”.
Hmm. It says it needs to copy some files from my original XP CD which I don’t have. Not good. Do you think I could just find a replacement for rundll.exe?
Get a Windows XP cd and run the sfc is I suggested, place all original Windows files it asks for back from the cd.
Also check this key in the registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
If you see c:\windows\system\rundll.exe there, remove it.
The original XP disk didn’t solve my problem, so I bit the bullet and rebuilt the whole from scratch. This time, I loaded Avast! right away before I installed any of my other tools. So far all is well.