Here is my situation.
I have a PC running Win 2000 Professional SP4. The original version was installed from a legal CD. After some time passed, the system was updated from a downloaded SP4 install program from Microsoft.
Now the system is a little flaky. Is there a way to repair the Win 2000 installation or should I wipe the drive and re-install it from scratch? I know you might say I should put a newer operating system on the PC but I need to keep using Win 2000 because it controls an inspection machine whose software can only run on 2000.