
I get this error every time I try to open a folder, access my C: drive, use the Search option, use the run option, and open programs with my start menu. After I click 'Close' explorer.exe seems to refresh itself and return to normal. I have scanned for viruses/adware/spyware/trojans with Norton Anti-Virus and Windows Defender. I have repaired my registry files. I have deleted temporary internet files. I'm out of ideas.

My D: Drive has seemed to vanish also. I get this message when I try to use the Run and Search options.
I am really frustrated with these problems and I would be extremely greatful if anyone has any idea what might cause them. All help will be appreciated.
Thanks,
ClayFish