RAS Asynchronous Media Driver - Windows 10 Service
RAS Asynchronous Media Driver.
This service also exists in Windows 11, 8, Vista and XP.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | Manual | Manual | Manual | Manual |
| 1511 | Manual | Manual | Manual | Manual |
| 1607 | Manual | Manual | Manual | Manual |
| 1703 | Manual | Manual | Manual | Manual |
| 1709 | Manual | Manual | Manual | Manual |
| 1803 | Manual | Manual | Manual | Manual |
| 1809 | Manual | Manual | Manual | Manual |
| 1903 | Manual | Manual | Manual | Manual |
| 1909 | Manual | Manual | Manual | Manual |
| 2004 | Manual | Manual | Manual | Manual |
| 20H2 | Manual | Manual | Manual | Manual |
| 21H1 | Manual | Manual | Manual | Manual |
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | RAS Asynchronous Media Driver |
| Service name: | AsyncMac |
| Type: | kernel |
| Path: | %WinDir%\System32\drivers\asyncmac.sys |
| Error control: | normal |
Default Behavior
The RAS Asynchronous Media Driver service is a kernel mode driver. If RAS Asynchronous Media Driver fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the AsyncMac service has failed to start.
Restore Default Startup Type of RAS Asynchronous Media Driver
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreRASAsynchronousMediaDriverWindows10.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the asyncmac.sys file exists in the %WinDir%\System32\drivers folder. If this file is missing you can try to restore it from your Windows 10 installation media.