Hyper-V Storage Accelerator (storflt) Service Defaults in Windows 8
Virtual Storage Filter Driver by Microsoft Corporation.
Default Settings
| Startup type: | Manual |
| Display name: | 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
The Hyper-V Storage Accelerator service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Hyper-V Storage Accelerator fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the storflt service hasn't been started.
Restore Default Startup Configuration of Hyper-V Storage Accelerator
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config storflt start= demand
3. Close the command window and restart the computer.
The storflt service is using the vmstorfl.sys file that is located in the C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows 8 installation media.