VSS Snapshot warning. File %BeBootDrive%\bootmgr is not present on the snapshot.

Exclude the ASR writer from the list of approved writers

ASR writer id is '{BE000CBE-11FE-4426-9C58-531AA6355FC4}'.

1. Go to: Start  --> Run, key in regedt32, press Enter.
2. Then go to the HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec for Windows Servers \Engine\Shadow Copy Components\
3. Then create a new Additional Not Authorized Writers key.
4. Then, in the Additional Not Authorized Writers key, create a new String value under that key named ASR, with a value of {BE000CBE-11FE-4426-9C58-531AA6355FC4} Completing these steps causes Backup Exec to ignore the ASR components.