Solution is

1. Run RDP client as Administrator on problem machines. MSlisensing key will recreate.

or (then)

2. Open regedt32.exe, navigate to [COLOR=#1f497d][B]HKLM\Software\microsoft\mslicensing\store[/B][/COLOR], then right-click on store and choose permissions. If there isn't already permissions for Users, add it. You'll need to give that group special permissions, ([COLOR=#1f497d]create-subkey , query, set value, enumerate subkeys, notify, read [/COLOR])