Microsoft UMPass Driver Service Defaults in Windows 7

Generic pass-through driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft UMPass Driver
Service name:UmPass
Service type:kernel
Error control:normal
Group:Extended Base
Path:%SystemRoot%\system32\DRIVERS\umpass.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UmPass

Default Behavior

Microsoft UMPass Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Microsoft UMPass 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 UmPass service is not running because of the error.

Restore Default Startup Configuration for Microsoft UMPass 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 UmPass start= demand

3. Close the command window and restart the computer.

The UmPass service is using the umpass.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.