Updating Veeam Installer Service fails with "Another version of this product is already installed"

Challenge When updating the Veeam Agent for Microsoft Windows deployment on a machine that is part of a 'Computers with pre-installed agents' Protection Group, attempting to run VeeamInstallerSvc.msi causes the error message: Another version of this product is already installed. Installation of...

RPC function call failed. Function name: [GetSvcVersion]

Challenge Veeam Backup & Replication fails to communicate with the Veeam Installer Service service on a managed remote machine with the error: Error: The RPC server is unavailable. RPC function call failed. Function name: GetSvcVersion. Target machine: remotemachine.domain.tld:6160. This article ...

Cannot Register Management Service. The Specified Service Has Been Marked for Deletion.

Challenge A Backup or Replication job using Application-Aware Processing fails with an error similar to: Failed to prepare VM for processing: Unable to perform installation Unable to register and start service. Attempt 10 of 10 Cannot register management service. Service name: VeeamVssSupport...