This is obviously due to problems with your 'VSS system'. Most likely not all writers are in a 'stable' state.

Check as follows:

C:\>vssadmin list writers

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

(C) Copyright 2001-2005 Microsoft Corp.

Writer name: 'Task Scheduler Writer'

   Writer Id: {d61d61c8-d73a-4eee-8cdd-f6f9786b7124}

   Writer Instance Id: {1bddd48e-5052-49db-9b07-b96f96727e6b}

   State: [1] Stable

   Last error: No error

Writer name: 'VSS Metadata Store Writer'

   Writer Id: {75dfb225-e2e4-4d39-9ac9-ffaff65ddf06}

   Writer Instance Id: {088e7a7d-09a8-4cc6-a609-ad90e75ddc93}

   State: [1] Stable

   Last error: No error

Writer name: 'Performance Counters Writer'

   Writer Id: {0bada1de-01a9-4625-8278-69e735f39dd2}

   Writer Instance Id: {f0086dda-9efc-47c5-8eb6-a944c3d09381}

   State: [1] Stable

   Last error: No error

Writer name: 'System Writer'

   Writer Id: {e8132975-6f93-4464-a53e-1050253ae220}

   Writer Instance Id: {50ff9856-aaaa-4832-88df-6539728e1252}

   State: [1] Stable

   Last error: No error

Writer name: 'ASR Writer'

   Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}

   Writer Instance Id: {af8d8af7-176a-4ef8-83dd-6e6ba8b906eb}

   State: [1] Stable

   Last error: No error

Writer name: 'Shadow Copy Optimization Writer'

   Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}

   Writer Instance Id: {7b74ce90-1bfd-461d-87e2-e432ce7d1def}

   State: [1] Stable

   Last error: No error

Writer name: 'BITS Writer'

   Writer Id: {4969d978-be47-48b0-b100-f328f07ac1e0}

   Writer Instance Id: {59b37491-26e1-44d3-abe1-4289a989652b}

   State: [1] Stable

   Last error: No error

Writer name: 'Registry Writer'

   Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}

   Writer Instance Id: {ed24e12c-9165-4abd-9148-ac1212ed74e5}

   State: [1] Stable

   Last error: No error

Writer name: 'COM+ REGDB Writer'

   Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}

   Writer Instance Id: {2168e3b0-e6c4-442d-b859-26270b3f5f96}

   State: [1] Stable

   Last error: No error

Writer name: 'WMI Writer'

   Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}

   Writer Instance Id: {9d8c23be-89aa-44b3-bb6c-9159736456d6}

   State: [1] Stable

   Last error: No error

Writer name: 'NPS VSS Writer'

   Writer Id: {35e81631-13e1-48db-97fc-d5bc721bb18a}

   Writer Instance Id: {aa5e06b1-2277-4af6-9e06-cf9877dfc23d}

   State: [1] Stable

   Last error: No error

C:\>

#####################

To correct that, you may either reboot the server or run this routine (as administrator):

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

net stop nsrpsd

net stop nsrexecd

net start nsrexecd

net start nsrpsd

If the issue still persists, restart the appropriate service.

And also use an appropriate NW client version (you did not state it).

Bingo,

Normally the System Writer will be in a failed or hung state like you have stated however with this specific error message all writers are in a no error state:

U:\>vssadmin list writers

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

(C) Copyright 2001-2013 Microsoft Corp.

Writer name: 'Task Scheduler Writer'

   Writer Id: {d61d61c8-d73a-4eee-8cdd-f6f9786b7124}

   Writer Instance Id: {1bddd48e-5052-49db-9b07-b96f96727e6b}

   State: [1] Stable

   Last error: No error

Writer name: 'VSS Metadata Store Writer'

   Writer Id: {75dfb225-e2e4-4d39-9ac9-ffaff65ddf06}

   Writer Instance Id: {088e7a7d-09a8-4cc6-a609-ad90e75ddc93}

   State: [1] Stable

   Last error: No error

Writer name: 'Performance Counters Writer'

   Writer Id: {0bada1de-01a9-4625-8278-69e735f39dd2}

   Writer Instance Id: {f0086dda-9efc-47c5-8eb6-a944c3d09381}

   State: [1] Stable

   Last error: No error

Writer name: 'System Writer'

   Writer Id: {e8132975-6f93-4464-a53e-1050253ae220}

   Writer Instance Id: {6d48f9b4-5209-4fbe-90f7-2254689b78de}

   State: [1] Stable

   Last error: No error

Writer name: 'SqlServerWriter'

   Writer Id: {a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}

   Writer Instance Id: {57b40707-f807-4241-af36-c4e56dff4fc5}

   State: [1] Stable

   Last error: No error

Writer name: 'ASR Writer'

   Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}

   Writer Instance Id: {88cc290e-380e-480f-bb40-21db4199c76e}

   State: [1] Stable

   Last error: No error

Writer name: 'Shadow Copy Optimization Writer'

   Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}

   Writer Instance Id: {6918287b-4bf6-4fe7-bf34-6fcfc12da092}

   State: [1] Stable

   Last error: No error

Writer name: 'Registry Writer'

   Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}

   Writer Instance Id: {eb2383a6-90e7-49e8-a8ee-ef685f90a2e9}

   State: [1] Stable

   Last error: No error

Writer name: 'COM+ REGDB Writer'

   Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}

   Writer Instance Id: {e7c1f540-23e0-4f40-94a4-0161a1f50f38}

   State: [1] Stable

   Last error: No error

Writer name: 'BITS Writer'

   Writer Id: {4969d978-be47-48b0-b100-f328f07ac1e0}

   Writer Instance Id: {beda0082-7383-415f-bb0f-ad26168d58a4}

   State: [1] Stable

   Last error: No error

Writer name: 'WMI Writer'

   Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}

   Writer Instance Id: {bf19bbba-3e21-4ec2-a0c2-653c5c6f18d8}

   State: [1] Stable

   Last error: No error

I have used a similar takedown to try to resolve the issue and while that has resolved other errors in the ast it doesnt seem to resolve this one.

We are using Netowrker Server 8.2.1.8 and Windows clients are all on 8.2.1 Build 681.

I have tried restarting services on the machine previously like you have stated and nothing seems to resolve this except for a reboot. It really feels like a windows patch started this as I have never seen these errors until about 6 months ago and some machines will start working and some continue to fail until they are rebooted.