Why does open file backup fail with error 80042306 (VSS_E_PROVIDER

Why does open file backup fail with error 80042306 (VSS_E_PROVIDER_VETO)?

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This error usually indicates one of the following conditions:

· Insufficient disk space. Volume shadow copy requires at least 100MB of free disk space for each volume (drive) in the snapshot set.

· All volumes were formatted with the FAT32 format. This is common if you upgraded from Windows 95/98/Me and chose not to convert your volumes to NTFS format. Volume Shadow Copy requires at least one NTFS partition to function correctly. You should either add a new hard disk and format it with NTFS or you should convert one of your FAT32 partitions to NTFS (backup your data first; please see here and here for more information).

It can also indicate an extremely high volume of I/O operations causing the snapshot creation operation to fail. Please inspect your system log (use the Event Viewer administrative tool or run eventvwr.msc) for VSS or VOLSNAP entries, and email these to .