text: I'm going to go out on a limb here and assume that you're running Windows XP.  \n\nYou can replace the boot record and repair the windows installation by using the repair feature of the Install CD. \n\nBoot to the CD.  Follow the Setup and watch for the "Repair Console".  \n\nOnce in the Repair Console, type:\nCHKDSK /FIX\n\nThis will run a repair of the Master Boot Record.  \nYou may also need to repair your Windows Installation.  You can do this by booting to the CD, bypass the Repair Console, and then watch for the REPAIR INSTALLATION command.  \n\nThe repair will replace all the corrupt files in your Windows Installation.