Brother MFC USB Serial WDM Driver (BrUsbSer) Service Defaults in Windows 7

Brother USB Serial Driver by Brother Industries Ltd..

Default Settings

Startup type: Manual
Display name:Brother MFC USB Serial WDM Driver
Service name:BrUsbSer
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BrUsbSer

Default Behavior

Brother MFC USB Serial WDM Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Brother MFC USB Serial WDM Driver fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the BrUsbSer service is not running because of the error.

Restore Default Startup Configuration of Brother MFC USB Serial WDM Driver

1. Run the Command Prompt as an administrator.

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

sc config BrUsbSer start= demand

3. Close the command window and restart the computer.

The BrUsbSer service is using the BrUsbSer.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 7 installation media.