Left click on the icon to open the classic mixer.The app will place its icon to the system tray in addition to the existing volume icon.Now launch the ClassicVolumeControl.exe file.Extract the software from the zipped folder.Navigate to the app’s home page and click on the “Download” link.Restore the classic volume mixer with the Classic Volume Control app, do the following. They have created this app specially for Windows 11, as they claim there are no other methods to access the older volume control. The Classic Volume Control is a free app from Winaero, which is a host of various tweaking tools. Both do their work and have their own advantages and disadvantages. To restore the classic volume mixer on Windows 11, you can use one of the freeware tools available for download.