Apply computer account AD membership changes without reboot required
Applying AD group membership changes for computer account(s) without a reboot required? Use klist.exe (Kerberos List) which is part of the Windows 2003 Resource Kit tools. Install the resource toolkit and copy klist.exe to the appropriate computer.
Start a CMD-box in elevated rights after the computer account is added to the appropriate AD security group and use the following command to purge kerberos ticket on the affected computer:
“klist.exe purge”
As simple as that…
Categories
Modern Workplace 
Hi,
I made the command on a 2k8 server and after, I did an gpupdate /force and gpresult /R /Scope “computer”
My group membership stays the same.
The old groups which the server was a member remain and the new ones don’t appear.
same result, this isn’t correct. The command prompt has to be opened as the “system account”.