Is there some means by which we can track system files and determine whether one has become corrupt?

And then perhaps just replace the system file from an installation disk?

It never fails. I install fresh, then somewhere down the line after some modification or mere daily use, Windows will crash and you never know if that is the beginning of trouble. Maybe a simple replacement file would restore the system. I suppose that's what scandisk is for, but has it ever recommended reinstalling a file?