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 of 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 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.