Backup failure code of 0x80070422 usually due to service being disabled
Check that the following services are enabled:
- "Block Level Backup Engine Service" - Set to Manual
- "COM+ Event System" (EventSystem) - Set to Manual.
- "Microsoft Software Shadow Copy Provider" (SWPRV) - Set to manual.
- "Remote Procedure Call" (RPCSS) - Set to Automatic
- "System Event Notification Service" (SENS) - Set to Automatic.
- "Volume Shadow Copy" (VSS) - Set to Manual.