Hello, today I came across this error when restarting my PC:

Windows cannot start becuase
ISAPNP.SYS is missing or corrupt

Now, I've been reading around the net on how to fix this and I've tried a few ways. I installed my HD as a slave to another PC and copied their ISAPNP file to my SYSTEM32/Drivers folder and still no luck! I even copied the file from the windows CD and so I've come for help because I've simply ran out of resources. Any help at all would be greatly apprieciated

Thank you!