Troubleshoot: Active Directory Migration Utility Error

You may encounter errors related to copying the target user’s registry hive when running the JumpCloud Active Directory Migration Utility (ADMU).

Symptom

You may encounter the following error when running the JumpCloud ADMU:
Registry Backup Error: Could not take a backup of the user registry files. Verify that the admin running ADMU has permission to NTUser.dat/UsrClass.dat. Verify that no user processes/ services for the migration user are running.

Resolution

• Session Management
  • Log in as a local administrator and ensure the target user is not active on the device. The ADMU interface will display the Active status of the users on the device. Occasionally a reboot is necessary to ensure all of the active user’s files are closed.
• Antivirus and Security Checks
  • Ensure that the ADMU Tool executable and NTUser.dat/UsrClass.dat are both added to the antivirus whitelist.
• Device Configuration
  • Verify that the Administrators groups has full access permissions for NTUser.dat and UsrClass.dat.