I have attempted activation of Hyper-v at least 4 times with the same results. after selecting, it says the machine needs to reboot and does, however, when starting up it display's something about "features" and when it reaches 98% completion, says it can't complete and recycles the machine restoring back to original. I have plenty of memory - my cpu has SLAT and turning off USB 3.0 support makes no difference.
I have gone to the log file and found that each time I have done this (load Hyper-v) 4 warnings are generated followed by an error they all have to do with VSS. Following is a copy of the Warning and error :
Log Name: Application
Source: VSS
Date: 12/16/2013 2:03:40 PM
Event ID: 40961
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: testbed
Description:
ASR Warning: Failed to collect disk information for ASR Backup. Reason: Unable to obtain disk information for device 0 (Win32 error code 0x1).
Event Xml:
ERROR
Log Name: Application
Source: VSS
Date: 12/15/2013 8:03:56 AM
Event ID: 8193
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: testbed
Description:
Volume Shadow Copy Service error: Unexpected error calling routine IVssAsrWriterBackup::GetDiskComponents. hr = 0x80042302, A Volume Shadow Copy Service component encountered an unexpected error.
Check the Application event log for more information.
.
Operation:
OnIdentify event
Gathering Writer Data
Context:
Execution Context: ASR Writer
Writer Class Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}
Writer Name: ASR Writer
Writer Instance ID: {befa2438-29f7-4eb6-911c-84225309eb2e}
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