I've got 2 MBP - one with clean install of 9926 one with 8.1 upgraded to TP (also now on 9926). Both have the same issue in bootcamp (native Windows boot) I've not tested with VMs as I rarely use OSX but I will set one up today. I asked on the mac forum also.
Thanks to Bills links I managed to download the SDK and make a trace of creating a restore point and recimg using this command vsstrace.exe +f 0xffff -o C:\temp\recimg.txt. The trace files are huge and I don't know where to start looking really. I've uploaded them in case anyone else knows what to look for. There is some stuff about it writing OK to the backup location but then messages about aborting.
[19:26:31.803 P:1480 T:1EE4 INCICHLH(0200) IOCTL] Opening a handle to \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy7 (access = 0x00000000, share = 0x00000003)
[19:26:31.803 P:1480 T:1EE4 INCICHLH(0300) IOCTL] The object '\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy7'. was opened under the device handle 0x000001e4
[19:26:31.803 P:1480 T:1EE4 INCICHLH(0451) IOCTL] IOCTL sent: 53019c on device \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy7
Input buffer size: 0, Output buffer size: 4096
[19:26:31.803 P:1480 T:1EE4 INCICHLH(0549) IOCTL] IOCTL 53019c succeeded on device \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy7 - 0x000001e4.
Output buffer: size received = 108
[19:26:31.808 P:1FFC T:1D54 CORSOFTC(0163) COORD] EXIT[CVssSoftwareProviderWrapper::Release] Time spent: 00:00:00-0000; total: 0; HRESULT: 0
[19:26:31.808 P:1FFC T:1D54 CORSNPSC(1217) COORD] EXIT[CVssSnapshotSetObject::ThawWriters] Time spent: 00:00:00-0015; total: 0xf; HRESULT: 0x80042306
[19:26:31.808 P:1FFC T:1D54 CORSNPSC(0828) COORD] HRESULT exception caught: hr: 0x80042306
[19:26:31.808 P:1FFC T:1D54 CORSNPSC(0831) COORD] ENTER[CVssSnapshotSetObject::DoSnapshotSet_failure_block]
[19:26:31.809 P:1FFC T:1D54 CORSNPSC(0850) COORD] Abort detected while commiting the snapshot set 0x80042306