My problem is a corrupted HAL.dll file in my XP Home OS. My first request for Help was answered by BigBadBen that assumed I had an XP CD which I don't. I started Googling and found references to XP Home OEM CD's. My first question to anyone who has used one of these is: How do I get my PC to recognize the CD. My only options are the error message about the corrupter file OR F8 which gives a limited menu. Question 2: Can the new XP be installed without reformatting the Hard Drive or losing my data files, pictures, etc. Question 3: Is it likely that this OEM CD will have a Product Key?