Microsoft Hyper-V Generation Counter (gencounter) Service Defaults in Windows 10

Virtual Machine Generation Counter by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft Hyper-V Generation Counter
Service name:gencounter
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\vmgencounter.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\gencounter

Default Behavior

Microsoft Hyper-V Generation Counter is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Microsoft Hyper-V Generation Counter fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the gencounter service has failed to start due to the error.

Restore Default Startup Configuration for Microsoft Hyper-V Generation Counter

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config gencounter start= demand

3. Close the command window and restart the computer.

The gencounter service is using the vmgencounter.sys file that is located in the %WinDir%\System32\drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.