Based on my research, the error code 8004230f means: The shadow copy
provider had an unexpected error while trying to process the specified
operation. Generally this issue can be caused the following factors:
1. Certain VSS DLLs are not registered properly
2. There is a problem with shadow copy provider
I suggest we perform the followings to troubleshoot the issue:
Step 1: First please apply the latest VSS package (KB940349) on the server.
Download Link:
http://support.microsoft.com/kb/940349
Reboot the server for the package to take effect
Step 2: Re-register the VSS related DLLs
==================
To do so, type the following commands at the command prompt. Press ENTER
after each command.
cd /d %windir%\system32
net stop vss
net stop swprv
regsvr32 ole32.dll
regsvr32 oleaut32.dll
regsvr32 vss_ps.dll
vssvc /register
regsvr32 /i swprv.dll
regsvr32 /i eventcls.dll
regsvr32 es.dll
regsvr32 stdprov.dll
regsvr32 vssui.dll
regsvr32 msxml.dll
regsvr32 msxml3.dll
regsvr32 msxml4.dll
Note: The last command may not run successfully.
Try Backup and see if the error still occurs.
Step 3. If the issue persists, go to the following registry key:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\STORAGE\Volume]
Import this key for backup
Delete Key "VOLUME"
Reboot the system
This will recreate the "VOLUME" key