Patch for Veeam Backup & Replication fails to install. Access is denied.

Challenge

Cause

Windows Process Activation Service (WAS) is not started on the Veeam Backup server.

Solution

1. Start the Windows Process Activation Service (WAS).
2. Make sure that World Wide Web Publishing Service (W3SVC) is also started.
3. Open the Internet Information Services (IIS) Manager, locate the VeeamBackup site and start it:
   
4. Run the Patch installer again.