Gerry--
Two error events seem to be related to the problem. There did not seem to be any warning messages. They almost occurred simultaneously.
********************************************************************************************
Log Name: System
Source: volsnap
Date: 1/13/2012 10:29:53 PM
Event ID: 27
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: Giga7a
Description:
The shadow copies of volume C: were aborted during detection because a critical control file could not be opened.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="volsnap" />
<EventID Qualifiers="49158">27</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2012-01-14T03:29:53.736637500Z" />
<EventRecordID>40721</EventRecordID>
<Channel>System</Channel>
<Computer>Giga7a</Computer>
<Security />
</System>
<EventData>
<Data>
</Data>
<Data>C:</Data>
<Binary>0000000002003000000000001B0006C003000000340000C002000000000000000000000000000000</Binary>
</EventData>
</Event>
Log Name: System
Source: volsnap
Date: 1/13/2012 10:29:53 PM
Event ID: 27
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: Giga7a
Description:
The shadow copies of volume C: were aborted during detection because a critical control file could not be opened.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="volsnap" />
<EventID Qualifiers="49158">27</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2012-01-14T03:29:53.721037500Z" />
<EventRecordID>40720</EventRecordID>
<Channel>System</Channel>
<Computer>Giga7a</Computer>
<Security />
</System>
<EventData>
<Data>
</Data>
<Data>C:</Data>
<Binary>0000000002003000000000001B0006C003000000340000C001000000000000000000000000000000</Binary>
</EventData>
</Event>