Problem
This error is shown when a VSS provider blocks (or vetoes) the creation of a snapshot and can be due to:
- Shadow Storage space on the source drive is insufficient or not configured,
- Installed software has installed Installing software which installs its own VSS provider,
- Existing VSS provider component has become corrupted.Below are the solutions:
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| title | Solution - Increase shadow Storage Space |
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To see the amount of storage space allocated and used for Volume Shadow Copies run this command from a command prompt with elevated privileges: | Code Block |
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| Vssadmin list shadowstorage |
To allocate more storage (e.g. 50GB) run this command: | Code Block |
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| vssadmin resize shadowstorage /For=C: /On=C: /MaxSize=50GB |
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| Reregister the VSS components |
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- From the main menu, select Other Tasks > Fix VSS Problems
 Image Added
- The Fix VSS Problems dialog is shown, click OK to reregister the VSS components.
 Image Added
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This error may also occur on Server OS and will require a different action:
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| title | Solution - Enable shadow copies on volumeReregister the VSS components |
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- Open Windows Explorer and navigate to This PC
- Right click any of the Disks that you wish to image and select Configure shadow copies...
 - In the Shadow Copies dialogue select a disk, click Enable > Yes then click OK to apply changes.
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