Hmm, sometimes, OEM Windows installs have the setup files under C:\Windows\Options\Cabs. If there's something there, maybe you can copy it off and use it to reinstall Windows from scratch while keeping the OEM branding?
Otherwise, the Add/Remove Programs control panel is your friend....
A dead CMOS battery was just messing with the whole thing, causing the machine to not even recognize its hard drive...one pair of pliers and a jumper adjustment later and now it's fine. I suppose next I'll have to figure out what I can safely delete off the hard drive to free up space, I want to put games on here...
The drive may quiet down slightly with use...or it may get louder before it fails.
Just no way to predict, and really not much you can do about it.
The problem with replacement Powerbook SCSI drives is they're all ~25 years old and will be subject to failure.
Imho, the cheapest most reliable option, should your drive fail, is to go solid state with a SCSI2SD PowerBook Edition adapter.