Event ID 8193 Volume Shadow Copy Service Error

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Volume Shadow Copy Service error: Unexpected error calling routine RegOpenKeyExW(-2147483646,SYSTEM\CurrentControlSet\Services\VSS\Diag,...). hr = 0x80070005, Access is denied.

Context:

Writer Class Id: {0ff1ce14-0201-0000-0000-000000000000}

Writer Name: OSearch14 VSS Writer

Writer Instance ID: {07c936a8-347c-4e39-8014-2a057f611382}

 

 

Solution:

Go to the details tab within the event.

There you'll see some information AND a USER --> the SharePoint Search Admin Account.

 

Just give that user Full Control at the Registry Key:

HKLM\SYSTEM\CurrentControlSet\Services\VSS\Diag

 

After a Serverreboot the errormessage shouldn't appear again.