Here is the scenario my friend and I have:
- Installed Norton Utilities and performed "optimize" (mistake 1)
- Upon reboot, chkdsk runs and starts spitting out "replacing invalid security id with default id for file #xxx" for about 200 000 files. My friend interrupts this because he thinks it's messing up with files (mistake 2)
- Upon another reboot, Windows Vista hangs with a black screen, disk being accessed and mouse cursor movable.
What I understand is chkdsk was trying to fix file security descriptors and it messed up some of them, or it repaired some of them, but other files are not accessible; so Windows can boot up to a certain point but hangs there.
All of this is happening on a Windows Vista system with full disk encryption on. We don't have the administrator password or encryption recovery password. I believe disk encryption is not corrupted.
These are what I tried:
- Safe mode. Doesn't work, Windows again hangs with a black screen with mouse cursor.
- Recovery disk from systemrecovery. This loads fine but it can't find the OS because disk is encrypted. manage-bde doesn't work either.
- Ubuntu. Can't see the disk again.
I believe there is a chance that this situation can be solved if I can run chkdsk during "Advanced Boot Menu" where "Safe Mode" etc appears.
Is there a way to achieve this? Are there any alternatives we can try? Any help is much appreciated.