QWAVE driver - Windows 7 Service
Quality Windows Audio/Video Experience component driver.
This service also exists in Windows 10, 11, 8 and Vista.
Startup Type
| Windows 7 edition | without SP | SP1 |
|---|---|---|
| Starter | Manual | Manual |
| Home Basic | Manual | Manual |
| Home Premium | Manual | Manual |
| Professional | Manual | Manual |
| Ultimate | Manual | Manual |
| Enterprise | Manual | Manual |
Default Properties
| Display name: | QWAVE driver |
| Service name: | QWAVEdrv |
| Type: | kernel |
| Path: | %WinDir%\system32\drivers\qwavedrv.sys |
| Error control: | normal |
Default Behavior
The QWAVE driver service is a kernel driver. If the QWAVE driver fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the QWAVEdrv service has failed to start.
Dependencies
If the QWAVE driver is stopped, the Quality Windows Audio Video Experience fails to start and initialize.
Restore Default Startup Type of QWAVE driver
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreQWAVEdriverWindows7.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 qwavedrv.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows 7 installation media.