I have a PC which has a very corrupt XP pro. It was purchased on ebay (not by me) and did not come with any discs.
It may or not be a legal version. The system boots and goes into windows but has many things missing from the desktop (like the start button for example). The hardware is not faulty. Doing sfc /scannow has not helped. There are no restore points and last known good does not help.
Apart from buying a stand alone copy of XP what other preferably legal pathways do I have? Can I use another XP disc to make a repair? Can I replace files manually? Can I repair the desktop?