Background Activity Moderator Driver - Windows 11 Service
Controls activity of background applications.
This service also exists in Windows 10.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | System | System | System | System |
| 22H2 | System | System | System | System |
| 23H2 | System | System | System | System |
| 24H2 | System | System | System | System |
Default Properties
| Display name: | Background Activity Moderator Driver |
| Service name: | bam |
| Type: | kernel |
| Path: | %WinDir%\system32\drivers\bam.sys |
| Error control: | normal |
Default Behavior
The Background Activity Moderator Driver service is a kernel mode driver. If Background Activity Moderator Driver fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the bam service has failed to start.
Restore Default Startup Type for Background Activity Moderator Driver
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreBackgroundActivityModeratorDriverWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the bam.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows 11 installation media.