The problem does not really fit here, but maybe it will help someone. The following problem occurs with users who have not logged on to VMware View Horizon Desktops for a long time:
The registration of the Group Policy Client service has failed. Access denied
The error occurs because the NTUser.dat file within the user profile is corrupt. This can usually be recognized by the size of exactly 256KB. Deleting the NTUser.dat helps so that the user can log on again, but does not resolve the cause.
The error occurs if the following situation applies: The user's view profiles are located on a file server with Windows Server 2012 as the operating system and deduplication activated.
Ursache des Problems ist das Windows 2012 Feature „Deduplizierung“, welches die Probleme mit der NTUser.dat verursacht. Hier hilft scheinbar nur abschalten und „entdeduplizieren“. Die Deduplizierung kann mit der PowerShell rückgängig gemacht werden:
Start-DedupJob -Volume p: -Type Unoptimization
The status of the job can be checked with the following command:
Get-DedubJob
Depending on the amount of data, the job can take quite a long time to complete. Furthermore, deduplication must be switched off for the corresponding volume:
Profiles with broken NTUser.dat can also be found using PowerShell:
Get-ChildItem ntuser.dat -Recurse -Force -ea 0 | where {$_.Length -le 262144} | foreach {$_.fullname}