From: Mauricio on
Found out my XP vm (virtualbox with ubuntu host) is not booting any
longer. It could have been because I had to forcifully restart the
laptop or not but the point is that if I try to start it, I will be
told that "A disk error occurred; press CTRL-ALT-DEL to restart." If I
reboot from the install CD in repair mode, I can mount the drive and
run chkdsk. After doing its thing, chkdsk claimed the drive is ok. So,
I looked at different directories in the drive at random and do not
see anything out of ordinary (no files with corrupted names and so
on). I even tried using fixmbr but that did not make the error go
away. What else can I try?