Problem
Microsoft Volume Shadow Copy Service (VSS) errors occur during backup: IVssSnapshotProvider::IsVolumeSupported() failed with 0x8000ffff
Error Message
Source: VSS
Event ID: 12293
Level: Error
Description:
Volume Shadow Copy Service error: Error calling a routine on a Shadow Copy Provider {b5946137-7b9f-4925-af80-51abd60b20d5}. Routine details IVssSnapshotProvider::IsVolumeSupported() failed with 0x8000ffff
Cause
VSS is not configured correctly on the volumes due to missing registry entries.
Solution
1. Follow the steps outlined in Microsoft article: support.microsoft.com/kb/940184
Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.
2. Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\STORAGE\Volume
3. For each key under 'Volume', checked for the value 'Service' and make sure it is set to volsnap. If 'Service' does not exist do the following:
a. Created a new String Value called: Service
b. Set the value to: volsnap
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