When attempting to delete a domain from Plesk the following error message is displayed:
Unable to open process token: (5) Access is denied.
Symantec Antivirus is installed on the server.
Tamper protection of Symantec Antivirus conflicts with Plesk.
Tamper Protection provides real-time protection for Symantec applications running on servers and clients. It prevents Symantec processes and internal objects from being attacked or affected by non-Symantec processes such as worms, Trojan horses, viruses, and security risks.
- Disable Symantec Antivirus Tamper protection.
- Run Plesk Reconfigurator > Repair Plesk installation > Plesk File Security & Plesk Virtual Host Security