HELP - Corrupted User Accounts?

Posted July 23, 2007 · July 23, 2007

On my Windows 2000 Pro laptop with my HD partitioned as C: and D:, I just

repartitioned the D: drive to give me more space using V-COM's Partition

Commander (I booted from the PC CD).

While using the boot CD, I saw a menu item labelled "Change SID". I figured

that it would present me with a dialog that would show the present SID for

my hard drive. However, I got an hourglass and I guess it must have changed

it without asking - damn!

After booting, I logged in as a Administrator and did some disk defragging

(DiskKeeper). I also installed the lastest MS updates using Windows Update

(except for the .NET updates).

Horror of horrors, I've lost my non-Administrator usernames!

My two Administrator usernames work fine. But my two no-Administrator users

are GONE! When I log in with my username MainUser, it lets me in with my

password, but I've got a clean desktop!

When I go into C:\Documents and Settings, I see the following directories:

MainUser

MainUser.ComputerName

SecondUser

SecondUser.ComputerName

The <user>.ComputerName entriesd are new. MainUser and SecondUser appear to

have all my old settings

Was it the SID change? Was it the Windows updates? Why is it only user

accounts and not admin accounts?