I have been working on a machine this week that had virus's and spyware all over the place, I removed all of them (I hope), installed IE6 and also updated SP1 to SP4. Since doing this I seem to have noticed some peculiarities like: The search feature on the START menu doesn't work If I open Add/remove programs a box appears but is empty ie. no programs listed. If I open My computer and try to open files like Program Files or the Windows file it opens but there are no files listed, other files will open without a problem though. There may be others I have not found yet but generally everything else seems to be working OK. Am I missing something basic or are these typical problems with SP4 and can I easily correct the problem?