When running a backup of a Hyper-V VM you may run into this issue:   Selected writer ‘Microsoft Hyper-V VSS Writer’ is in failed state Status: 8 (VSS_WS_FAILED_AT_PREPARE_SNAPSHOT)   – Writer Failure code: 0x800423f3   The above error requires further investigation. You need to check the Windows and Hyper-V logs as shown in this article […]