8.4. User does not have administrative privileges

update to 8.4 from 8.3
on computers with Windows 7 SP1:
ERROR: User *** does not have administrative privileges.
on Windows XP SP3 working
account is domain admin
What's the problem?
on computers with Windows 7 SP1:
ERROR: User *** does not have administrative privileges.
on Windows XP SP3 working
account is domain admin
What's the problem?