Hi,
We have a problem, please help.
OS: Windows 2008 R2 64-bit with Hyper-V
vssadmin list writers
shows:
Error: A Volume Shadow Copy Service component encountered an unexpected error.
Check the Application event log for more information.
vssadmin list providers
shows:
Error: Unexpected failure: Class not registered
In the Event Log we see 2 events:
Event #1:
Log Name: Application
Source: VSS
Date: 8/8/2011 2:04:46 PM
Event ID: 22
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: HV1
Description:
Volume Shadow Copy Service error: A critical component required by the Volume Shadow Copy service is not registered. This might happened if an error occurred during Windows setup or during installation of a Shadow Copy provider. The error returned from CoCreateInstance
on class with CLSID {e579ab5f-1cc4-44b4-bed9-de0991ff0623} and Name Coordinator is [0x80040154, Class not registered
].
Event #2:
Log Name: Application
Source: VSS
Date: 8/8/2011 2:03:28 PM
Event ID: 8193
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: HV1
Description:
Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance. hr = 0x80040154, Class not registered
.
Operation:
Instantiating VSS server
Thank you!