How to fix upgrade Veeam backup & Replication failed –Error 1327.Invalid Drive
If it happened Error 1327.Invalid Drive when you tried to upgrade Veeam Bavkup & Replication to 11a, don’t panic, this is likely caused by a stale registry entry for the Veeam server. In my case, the Veeam server had a F drive but removed it long time ago. My error message is Error 1327.Invalid Drive F: and upgrade failed.