The error “Current user is not the local or domain administrator” displays when installing or upgrading Desktop Authority 9.x. The DAInstaller.log file contains the entry “Get authorization group exception: An error (1301) occurred while enumerating the groups. The group's SID could not be resolved.”
The account being used is not a member of the local administrator or domain administrator groups. This might also occur when the security identifiers (SIDs) S-1-18-1 and S-1-18-2 cannot be mapped after a Windows 2012 domain controller is added to the network.
Open a command prompt on the server or computer you are installing Desktop Authority on. Run the command psgetsid S-1-18-1. An error might popup and state "Error querying SID: No mapping between account names and security IDs was done." This specific error mapping the SIDs is limited to Windows 7 and Windows 2008 R2.