I was running into this problem sometimes when doing a P2V conversion in Hyper-V. The conversion would get to exactly 40% and fail. Every time. Well, after a little searching around, it turned out to be a common problem with the VSS writer on the source machine that is getting converted. Thankfully, the fix is simple and doesn't even require a reboot.
Error (13243)
The snapshot creation failed because the VSS writer {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f} on source machine MACHINENAME did not respond within the expeted time interval.
(Internal error code: 0x809933BB)
Recommended Action:
Ensure that VSS writer is functioning properly and then try the operation again. 4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f is the Shadow Copy Optimization Writer
You may also see an event ID 8193 in the Application Event Log on the source machine.
The Fix:
- Open regedit and go to HKLM\Software\Microsoft\Windows NT\CurrentVersion\ProfileList
- Under the ProfileList key, delete any subkey that has ".bak" on the end.
Done! You can now complete your P2V conversion.
What if we don't have this .bak profile and doing the below and still have the same issue?
1) VSS re-register using below commands,
cd /d %windir%\system32
net stop vss
net stop swprv
regsvr32 /s ole32.dll
regsvr32 /s oleaut32.dll
regsvr32 /s vss_ps.dll
vssvc /register
regsvr32 /s /i swprv.dll
regsvr32 /s /i eventcls.dll
regsvr32 /s es.dll
regsvr32 /s stdprov.dll
regsvr32 /s vssui.dll
regsvr32 /s msxml.dll
regsvr32 /s msxml3.dll
regsvr32 /s msxml4.dll
vssvc /register
net start swprv
net start vss
2) Performing the below to gain correct file permissions
Takeown /f %windir%\winsxs\temp\PendingRenames /a
icacls %windir%\winsxs\temp\PendingRenames /grant "NT AUTHORITY\SYSTEM:(RX)"
icacls %windir%\winsxs\temp\PendingRenames /grant "NT Service\trustedinstaller:(F)"
icacls %windir%\winsxs\temp\PendingRenames /grant BUILTIN\Users:(RX)
Takeown /f %windir%\winsxs\filemaps\* /a
icacls %windir%\winsxs\filemaps\*.* /grant "NT AUTHORITY\SYSTEM:(RX)"
icacls %windir%\winsxs\filemaps\*.* /grant "NT Service\trustedinstaller:(F)"
icacls %windir%\winsxs\filemaps\*.* /grant BUILTIN\Users:(RX)
net stop cryptsvc
net start cryptsvc