FltMgr Service Defaults in Windows 7

File System Filter Manager Driver.

Default Settings

Startup type:Boot
Display name:FltMgr
Service name:FltMgr
Service type:filesys
Error control:critical
Group:FSFilter Infrastructure
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\FltMgr

Default Behavior

FltMgr is a file system driver. In Windows 7 it is being loaded by Boot Loader before Kernel initialization. If FltMgr fails to load, Windows 7 attempts to write the error data into Event Log and restart the computer, using the Last Known Good configuration. If the Last Known Good configuration is not valid, Windows 7 startup ends with a Stop error. If you remove or disable the FltMgr service, Windows 7 won't start.


If FltMgr is stopped, the following services cannot start:

Restore Default Startup Configuration for FltMgr

1. Select your Windows 7 edition and service pack, and then click Download.

2. Save the Win7_FltMgr_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The FltMgr service is using the fltmgr.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 7 installation media.