For some reason PCinstructions.com does not seem right.
PCinstruction.com does
As far as the instructions that came (or should ve come) with your computer (your modem, printer, cam etc), I can see the need for online documentation so one can refer to it. But excuse my reverse thinking here, why would someone search a site about PC instructions if they are already set up and running a browser with a functioning operating system and interenet connection.
I just can't see the CD ROm hanging out of the bay with controller cables loose and the guy searching for "PC instructions" on line.
Did you measn troubleshooting or did you mean general pc instruction (cont. education)?
In any event, I can see a site with pc set-up etc instructions for back-up purproses and for really anal folks.
Good luck, this could be made into somthing maybe.