Microsoft Windows Server 2008R2: empty screen after user logon

Symptom: a user can log on, but nothing else but an empty screen is displayed.

Cause: well, multiple cause can result in this, but the last I encountered was junk in the attribute "LogonHours" of Active Directory for the user.


  1. log on the active directory server with administrative account (local or domain admin)
  2. Open Active Directory User and Computers -> Users
  3. Right-click on the user -> Properties
  4. On the Attribute Editor tab, go down to the logonHours attribute
  5. Click on Edit, Clear and Apply


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