Hello, I have the same problem. I'm running XP Pro on a Toshiba Satellite notebook which is two years old. I've tried most of the suggestions above, and have come to the part where I am told to insert the original setup CD-ROM and select 'r'. Problem is, I don't have this. The computer came pre-loaded with Xp so I don't have an original Set up CD-ROM. I have the following: Product Recovery CD-ROMs 1 and 2, and a Tools and Utilities CD-ROM. Recovery CD-ROM gives me the option of recovering the entire hard drive which I really can't afford to do. I'm notsure what the purpose of the other two disks are, I've never used them before and they aren'tproducing any results now. User manual is unclear. Does anyone know: Which of these disks would contain the missing/corrupt file OR could I get the file from a friend's copy of XP, OR, should I just contact the manufacturer? All help appreciated. I'm sort of new to all this so forgive me if I sound clueless! Thanks a lot.