My sister just found out the copy of Windows she has is not legal (at least her serial number isn't checking out). I told her to see if her work would provide her with a working corporate number since she only uses it for work, and they simply gave her a disk with no instruction. My question: Is there a way to enter the new serial number into the registry or, instead, of entering anywhere? Or will she (or more precisely, I) have to reinstall her entire operating system?
Or is there an easier way?