Microsoft Hardware Error Device Driver (ErrDev) Service Defaults in Windows 7
Error Device Driver by Microsoft Corporation.
Default Settings
| Startup type: | Manual |
| Display name: | Microsoft Hardware Error Device Driver |
| Service name: | ErrDev |
| Service type: | kernel |
| Error control: | normal |
| Group: | Extended Base |
| Path: | %SystemRoot%\system32\DRIVERS\errdev.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ErrDev |
Default Behavior
Microsoft Hardware Error Device Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Microsoft Hardware Error Device 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 ErrDev service is not running because of the error.
Restore Default Startup Configuration of Microsoft Hardware Error Device 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 ErrDev start= demand
3. Close the command window and restart the computer.
The ErrDev service is using the errdev.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.