When trying to launch the DetectionServer.msi to install Symantec DLP 15.8 on a detection server, the following error appears:
Error Calling RegOpenKeyExA: Access is denied. (HRESULT: 0x5)
Even though the logged in user has Admin privileges, they do not have permissions to run the msp
Symantec Data Loss Prevention 15.8
Launch the msp through an Administrator Command Prompt.
The Install GUI should launch successfully.