Microsoft Hyper-V Storage Accelerator (storflt) Service Defaults in Windows 10

Virtual Storage Filter Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft Hyper-V Storage Accelerator
Service name:storflt
Service type:kernel
Error control:normal
Group:Extended Base
Path:%SystemRoot%\System32\drivers\vmstorfl.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storflt

Default Behavior

Microsoft Hyper-V Storage Accelerator 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 Storage Accelerator fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the storflt service has failed to start due to the error.

Restore Default Startup Configuration for Microsoft Hyper-V Storage Accelerator

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

2. Save the Win10_storflt_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The storflt service is using the vmstorfl.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.