I have an Inspiron 1520 running XP which was running fine until last night. Now when it boots just after the XP logo it presents me with the blue screen indicatiing " a problem has been detected and windows has been shut down to prevent further damage to your computer".
When booting to safe mode it crashes after loading Mup.SYS. We booted into the XP recovery console and noticed it came up to the F: drive instead of C:.
Finally we decided to do a reinstall as we only need to recover data and aren't concerned about losing programs. When we went into the XP installation screen prompting for a partiion we noticed the C: drive was list of type [UNKNOWN]. We only received an option to format the partiition for a new installation; no repair was given as it did not recognize the disk.
At this point we went back to recovery mode and ran a scandisk / r as well as a fixmbr with no changes.