IR Bus Enumerator (IRENUM) Service Defaults in Windows 7
IR Bus Enumerator.
Default Settings
| Startup type: | Manual |
| Display name: | IR Bus Enumerator |
| Service name: | IRENUM |
| Service type: | kernel |
| Error control: | ignore |
| Path: | %SystemRoot%\system32\drivers\irenum.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IRENUM |
Default Behavior
IR Bus Enumerator is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If IR Bus Enumerator fails to load or initialize, Windows 7 startup continues without error messages. The failure details are being written into Event Log.
Restore Default Startup Configuration of IR Bus Enumerator
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config IRENUM start= demand
3. Close the command window and restart the computer.
The IRENUM service is using the irenum.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.