How to use CHKDSK to fix a boot problem

In my experience, CHKDSK /P /R fixes 90% of all Windows XP boot problems. It is run from the Recovery Console as described in some of my other posts.

First run CHKDSK /P then reboot and hope for Windows. If it blue screens again, go back into the Recovery Console and try the "in place upgrade" as described HERE If you find there is no OS found to "upgrade", reboot, back into the recovery console, and then run BOOTCFG /ADD or /REBUILD, and name the XP install if found. If BOOTCFG /REBUILD wont finish you can try running a disk diagnostic program from a live cd such as Ultimate Boot CD.