Dynamic Volume Manager (volmgrx) Service Defaults in Windows 10

Extension of the volume manager driver that manages software RAID volumes (spanned, striped, mirrored, RAID-5) on dynamic disks.

Default Settings

Startup type:Boot
Display name:Dynamic Volume Manager
Service name:volmgrx
Service type:kernel
Error control:critical
Group:System Bus Extender
Path:%SystemRoot%\System32\drivers\volmgrx.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\volmgrx

Default Behavior

Dynamic Volume Manager is a kernel device driver. In Windows 10 it is starting by the operating system Boot Loader as a part of the driver stack for the boot volume. If Dynamic Volume Manager fails to load or initialize, Windows 10 attempts to record the error details into Event Log and restart the PC, using the Last Known Good configuration. If the Last Known Good configuration cannot be applied or working improperly, Windows 10 startup process halts with a Stop error. If you disable or delete the volmgrx service, Windows 10 won't start.

Restore Default Startup Configuration for Dynamic Volume Manager

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_volmgrx_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The volmgrx service is using the volmgrx.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.