How to keep user profile on new domain

We have a client that there server crashed. The domain was abc.com. So all user PC's are still working and under the abc.com of the old server.

We purchased a new server and we will create the domain abc.com again. Is it possible to have the current profiles point to the new server rather than unjoin from domain and re add to the domain since its the same domain name?

The reason why im asking is because we want to minimize downtime and not re-config outlook add all the other software on the user PC's

The old server OS is SBS 2008
The new server OS is WinServer 2012 Essentials
IT_FanaticAsked:
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it_saigeDeveloperCommented:
Creating a new domain (regardless of the name) will generate new SID's for the users and computers.  This means that you will not be able to just *point* the existing profiles to the new user SID's.

That being said, you can, however, instruct the new user SID to use the old user profiles.  What you will need to do is modify the registry so that the newly created user SID loads the profile for the old SID.

Open Regedit.
Browse to \\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList.  You will see something similar to -Capture.JPGLocate the new user SID and modify the ProfileImagePath key value to equal the old user profile path.

-saige-
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
You will definitely need to unjoin the COMPUTERS from the old domain, even though the name is the same.  This is because COMPUTER accounts are stored in Active Directory using a specific ID (not the computer name) which will not just magically come over to your new domain.  User accounts also use SIDs and creating a new domain will create new SIDs which will not match the old ones -- this means that all user permissions on the workstation files and registry keys which are designated as domain user permissions will become invalid.

Because this is Server 2012 Essentials, you should only join the workstations to the domain using the http://servername/connect method which will properly install the Essentials Launchpad that helps you manage workstations from the server.

While this should also migrate over the old user profile, it may not be able to because of the permissions problems noted above.  In this case, you can use a free tool from ForensiT.com called the User Profile Wizard that can be downloaded here:  http://www.forensit.com/downloads.html

This tool will correctly reassign the old user's profile and make sure that all files and registry keys have the proper permissions settings.  Failure to get these settings right will cause users to have major functionality issues, so if the wizard doesn't get it right you will need to manually rebuild the user's profile.

Be aware that if you need to manually create the profiles and users have a lot of files stored on their local workstations, this process can take HOURS to complete for each user.

Jeff
TechSoEasy
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
By the way -- I don't recommend following what saige stated above -- doing so will leave the permissions incorrect on the registry keys and some keys will not be able to be written to, causing problems for users.  Use the Profile Migration Wizard which will do exactly what he is stating, but moreso, it will fix all permissions issues.
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IT_FanaticAuthor Commented:
How do I run the profile migration wizard every user has Windows 7 professional is the sun from the PC or the server if so can you guide me please
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IT_FanaticAuthor Commented:
I meant software not sun..
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IT_FanaticAuthor Commented:
Thank you all for your help. The registry hack did not work for me. I know it has worked for others but i ended up just rejoining them to the domain.
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