Solved the problem of adjusting the volume icon

The volume adjustment icon is gone. If the control panel does not, it means that your sound card is gone. Go to the Device Manager and check whether there is a sound card. There are other possibilities:
Type 1: "Control Panel"-"Sound and audio devices"-"place the volume icon in the taskbar" was manually disabled. You just need to open it. Type 2: "Put the volume icon in the taskbar", which is invalid. Sndvol32.exe lost, file path C: \ WINDOWS \ www.2cto.com
Third: If you have deleted a startup project with software, you accidentally deleted the startup of the volume icon. In this case, "Put the volume icon into the taskbar" is checked, the volume icon appears, but the volume icon is not restored after the reboot, you must set it in the control panel again. (In this case, the network connection icon may also disappear ).
In this case, you only need to restore the deleted items from the startup items in the registry. "Start" -- "run" and enter regedit to open the registry, open HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run in sequence to create a new string in the right window of HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run (right-click Create on Run ), the key value (double-click Edit on mongoray) is "c: \ windows \ system32 \ mongoray.exe". If it is a win2000 system, it is "c: \ winnt \ system32 \ mongoray.exe "to enable the most powerful IT network