We are seeing the following on our Server 2016 VM Hyper-V Host machine

System is an HP DL-380 G8

Not seeing this on any other machines with the same set-up

Log Name: Application
Source: Application Error
Date: 11/06/2017 01:38:15
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: server.domain.suffix
Description:
Faulting application name: svchost.exe_CDPSvc, version: 10.0.14393.0, time stamp: 0x57899b1c
Faulting module name: ucrtbase.dll, version: 10.0.14393.0, time stamp: 0x578997b5
Exception code: 0xc0000409
Fault offset: 0x000000000006ea1e
Faulting process id: 0xff8
Faulting application start time: 0x01d2cda5b4f67ff6
Faulting application path: C:\Windows\system32\svchost.exe
Faulting module path: C:\Windows\System32\ucrtbase.dll
Report Id: 97c4964f-3b43-4bbd-90bc-b56a455cd072
Faulting package full name:
Faulting package-relative application ID:
Event Xml:



1000
2
100
0x80000000000000

2215
Application
server.domain.suffix



svchost.exe_CDPSvc
10.0.14393.0
57899b1c
ucrtbase.dll
10.0.14393.0
578997b5
c0000409
000000000006ea1e
ff8
01d2cda5b4f67ff6
C:\Windows\system32\svchost.exe
C:\Windows\System32\ucrtbase.dll
97c4964f-3b43-4bbd-90bc-b56a455cd072

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This has been seen by other users - the VSS writers and Hyper-V VSS services disappear and they restart the Cryptographic services and Hyper-V manager to bring the backup writers back, until they do this, Windows Server Backup fails.

Our question is - do you have Visual Studio installed on your server?

This can break the cryptographic and Hyper-V services by overloading the backup writers as they try to backup the .net folders in some Windows version. Try removing Visual Studio and installing on a disk you do not need to backup.

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