It's kind of puzzling that you were able to remove your computer from the domain without Administrative rights. In order to add and remove a computer from the domain you need to have the rights to modify active directory. Are you completely sure that you removed the computer from the domain.
Before you go checking with the IT department, ensure that you do not have a logon to/from option on your login screen. If you do, click on the drop down box and see if you can recognize your domain. If you do not see a logon to/from option (usually right under password) make sure that you have your options expanded (there is an options button in the lower right hand corner of the login box; "Options <<" means options are expanded and you can close them, "Options >>" means that your options are closed and that you can expand them)
If you have done the above and cannot locate your domain, or do not have a logon to/from option, then you are correct that you are now a workgroup member.
If that is the case, then here is a basic explanation of what your IT department will most likely do.
If they have the capability to remote into your system, they can in order to readd your computer to the domain. As long as the comuter's SID (Security ID number) hasn't changed, then when your computer rejoins the domain, the domain should treat your computer like a long lost buddy and not change anything. This in turn would allow your profile to be accessed using the same User SID. If however, your Computer's SID has changed, then after a new profile is generated, the IT department will have to go into the registry to direct your SID to use your old profile instead of the new one.
HKLM\Software\Microsoft\WindowsNT\CurrentVersion\ProfileList is the location in the registry where all user SID's are directed to their associated profiles path. You can easily match the SID with the data path of the profile by looking at the ProfileImagePath key in each SID and matching it with the profiles path on the system. As long as you know where your old profile is located at, it's a simple matter of changing your new SID's ProfileImagePath to the old ProfileImagePath. Ofcourse in order to do this you cannot be logged into either profile, which means either an Adminstrator or 3rd party Administrative user will have to login and modify the registry.
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Last edited by sage45; 06-14-2007 at 09:02 PM..