System is an Intel i7 running 64-bit Win 7 Professional. When I went to start it up today, the CHKDSK utility ran automatically and said it found a few bad sectors. It tried to start up Windows and I got a message that it failed to boot, with the diagnostic report showing most of the tests passed but it had “registry corrupted” in a few places. First I tried recovery from a system restore point, which failed, citing a .dll file in the AVG directory and saying it was unable to replace it. Then I tried restoring from a system image (more recent than the system restore point), which worked.
So it booted up and everything seems to be OK but I’m kinda worried here and I can’t even tell if it’s a hardware or a software issue. What other types of diagnostics should I do? If there’s a virus AVG isn’t detecting it (as a side note I hear AVG isn’t the best antivirus, should I ditch it for something else?)
Good idea to reformat and reinstall the OS from scratch? I’ve got everything backed up that needs backing up - would just be a pain reinstalling everything and getting my settings back but if it’s what needs to be done here then I’ll do it.
ETA: oh and I forgot to add: what confounds me is that I haven’t been making major system changes. The only software updates lately have been automatic ones from Adobe, AVG, and Microsoft itself (including the SP1 for 7). Could any of these actually have caused the problem?