I've joined the Windows 7 Pro workstations to the Domain using the SERVER2012/Connect app and that seemed to work fine.  I made the Users all Standard, not Admin, and access to the Shared folders is working fine too.  Users appear to be in the Administrators group on the local machine, which is what I need.

However, a number of our applications aren't working correctly ... one writes changes to HKey Current User and those changes will not stick.  Some IE sites that require changes have to be made each time; those changes don't save.  Some of the ODBC connections to SQL databases are behaving strangly as well.  I tried checking permissions on the Windows Registry keys, and they looked OK.

If I log on to the workstation not using the Domain Account I don't have this problem.  And, one of the workstations which had performed the Windows 10 Upgrade while connected to the previous Domain Controllder works fine.

Any direction would be greatly appreciated!   Thx DMiller

Hi DMiller,

If I log on to the workstation not using the Domain Account I don't have this problem.

According to your description, the issue only occurred to domain accounts.

Please try to remove then add those problematic domain accounts to local administrators group to see whether the issue persists.

And, one of the workstations which had performed the Windows 10 Upgrade while connected to the previous Domain Controller works fine.

Please also fully patch other Windows Systems.

If the issue persists, please view Event Logs to see whether any useful information was logged.

In addition, since you are using Essentials, please refer to experts in

Windows Server 2012 Essentials forum below to get professional support:

https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=winserveressentials

Best Regards,

Amy