Windows 10 Lenovo laptop VSS backup issue

[TYTYTY]

Using 3rd party backup solution to perform Volume Shadow Copy service ("VSS") failed.

Just happen of the Lenovo laptop contains OEM partitions. Is VSS support OEM partitions? Any official documentation mention?


Thanks.


-laptop Windows 10 Pro.
-VSS backup fails with error message
2018/08/22-10:16:05.69000 [uvss_assist] VssClient::ApplyDRRequirements: ASR Writer is selected for backup
2018/08/22-10:16:05.69000 [uvss_assist] - Checking volume \\?\globalroot\device\harddiskvolume2\ to see if mountpoint...
2018/08/22-10:16:05.69000 [uvss_assist] - Get volume path name for \\?\globalroot\device\ ...
2018/08/22-10:16:05.69099 [uvss_assist] Executing Win32 call 'L"GetVolumePathNameW"'
2018-08-22 03:16:05 avvss Error <8801>:
ERROR: Win32 call L"GetVolumePathNameW" failed.
2018/08/22-10:16:05.69099 [uvss_assist] - GetLastError() == 123
2018/08/22-10:16:05.69099 [uvss_assist] Loaded the VSS message DLL
2018/08/22-10:16:05.69099 [uvss_assist] - Error text: The filename, directory name, or volume label syntax is incorrect.


2018-08-22 03:16:05 avvss Error <12077>: VSS returned an error message exiting HR = 0x8007007b
2018-08-22 03:16:05 avvss Info <0000>: Finished with backup. Performing cleanup.


-No windows event ID error both applcation and system.


DISKPART> list disk

Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 238 GB 0 B *

DISKPART>

DISKPART>

DISKPART> exit

Leaving DiskPart...

C:\WINDOWS\system32>vssadmin list volumes
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2013 Microsoft Corp.

Volume path: \\?\Volume{64cfe1e7-ca43-4207-8ef9-b8f1e4d3dfe5}\
Volume name: \\?\Volume{64cfe1e7-ca43-4207-8ef9-b8f1e4d3dfe5}\
Volume path: C:\
Volume name: \\?\Volume{f733ef78-05b5-4cdf-90d7-ff4f19d9156e}\
Volume path: \\?\Volume{a8d50436-c290-4e18-9371-287b0690c356}\
Volume name: \\?\Volume{a8d50436-c290-4e18-9371-287b0690c356}\

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