Is there a way to change the PASS performance repository user? For example, changing from Windows authentication to SQL authentication or vice-versa.
The easiest way to change the repository user is to re-run the agent installation utility on the monitored host, and choose the option to configure the repository. It will ask you if you want to override the current configuration, to which you should answer yes. This will not lose any data currently in your respository, but allow you to configure the repository to use the desired user. This user should have full access to the Quest_Performance_Repsository database.