System Partition changed from C: to F:! How to change back?

[David Yu]

Win2K prof. installed in C:\winnt.

I installed another partially bad disk onto this PC, trying to recover some data. After rebooting, the drive C: was changed to F: by
Win2k OS automatically!

So i removed the bad disk, and managed to boot the PC and logined to the system. I run: "diskmgmt.msc", but unable to change F: to
C: because it is a system partition.

Help:
1) How can i change drive F: to C:?
2) Why Win2k change the system partition number?

 

[Pegasus]

Win2K prof. installed in C:\winnt.

I installed another partially bad disk onto this PC, trying to recover

some data. After rebooting, the drive C: was changed to F: by

Win2k OS automatically!

So i removed the bad disk, and managed to boot the PC and logined to the

system. I run: "diskmgmt.msc", but unable to change F: to

C: because it is a system partition.

Help:
1) How can i change drive F: to C:?
2) Why Win2k change the system partition number?

I faced the same situation a few days ago and was able to recover
the machine, possibly because I did not allow it to reboot. Here is
what I did:

- Run regedit (via a networked PC if you cannot run it on the problem PC)
- Change all references in HKLM from F:\ to C:\ (there were only about 15 in
my case)
- HKLM/SYSTEM/MountedDevices/:
delete all keys which look like "\DosDevice\<DRIVE_LETTER>:"

 

[David Yu]

Thanks!

I searched "MountedDevices DosDevice" in MSDN, and guess what i got?

Q223188 How to Change the System/Boot Drive Letter in Windows 2000.

and two other topics:
Q249321 Unable to Log on if the Boot Partition Drive Letter Has Changed
Q234048 How Windows 2000 Assigns, Reserves, and Stores Drive Letters