its recovery discs.
Most should simply require putting the new hard drive into the computer where the original was then performing the re-installation per the recovery discs recommended steps.
A few however will require the new hard drive to be identical to the old (same manufacturer, size and model) as a check is performed.
Since you don't mention make or model of PC, your best recourse would be to contact the manufacturer and ask them.
Hi all you brainy guys n gals out there!
If the hard drive crashes on a PC I have bought oustside of the 1 year warranty that came with the machine, how do I reinstall the Windows XP PRO O/System that came already installed on the machine?
I did the 6 CD backup that they recommended before I did anything else.
Will these backup CDs restore the original O/System on the new hard drive when I install it? Or will I have to buy another O/System?
Would appreciate any help on this guys!
PS I always back my files.