Are you look for a way to correct the partition boot sector, here is a quick fix. You have to put WINDOWS XP CD in your reboot the computer next time in recovery console. Here are the steps after you put your XP CD and boot into recovery console (Choose R for Recovery console when Windows XP setup disk starts)1. Once console is loaded do enter this command FIXBOOT C:(where C: is the hard disk drive where WINDOWS XP is installed by default). To know more about FIXBOOT options, click here to visit Microsoft Technet site If you have followed the instructions correctly, you are done.