VSS issue on my Windows 10 box:

Log Name: Application
Source: VSS
Date: 7/9/2020 3:53:22 PM
Event ID: 8194
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: %computername%.domain
Description:
Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.
. This is often caused by incorrect security settings in either the writer or requestor process.

Operation:
Gathering Writer Data

Context:
Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220}
Writer Name: System Writer
Writer Instance ID: {39dafbf4-7be0-41d9-930c-1514502b2469}
Event Xml:



8194
0
2
0
0
0x80000000000000

22674


Application
%computername%.domain



0x80070005, Access is denied.



Operation:
Gathering Writer Data

Context:
Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220}
Writer Name: System Writer
Writer Instance ID: {39dafbf4-7be0-41d9-930c-1514502b2469}
2D20436F64653A20575254575254494330303030313238372D2043616C6C3A20575254575254494330303030313234312D205049443A202030303030343238342D205449443A202030303030343833362D20434D443A2020433A5C57494E444F57535C73797374656D33325C737663686F73742E657865202D6B204E6574776F726B53657276696365202D70202D732043727970745376632D20557365723A204E616D653A204E5420415554484F524954595C4E4554574F524B20534552564943452C205349443A532D312D352D3230



What setting do you think is wrong, if that is what the issue is?

---

This is a COM+ permissions problem.

If you go into component services from the start search and expand the computers section on the left, right click on the My Computer icon and choose properties

Click the COM Security Tab:



Now under Access Permissions click the Edit default button.

Click add:



Now enter Network Service and press OK

Make sure the user is given all permissions:



Press OK and Restart the PC