How to Fix Volume Icon Not Showing In Windows 10 computer

The first method to start this error fixing method is Resrting Windows Explorer.
➡Open This PC or My Computer
➡Then minimize it
➡Now right-click on Taskbar
➡There you’ll see a program named Windows Explorer. Just right-click on that
➡Then click on Restart.

After restarting, the error will be fixed and the Volume icon will start appearing in the notification area of the Taskbar

Sometimes, we face this issue when the icon gets disabled by mistake. So to fix the issue:
➡Search for Icons from Windows Search Bar
➡Click on Turn System Icon On or Off
➡Now you’ll see a list of Enabled and Disabled icons.
➡To reappear the Volume icon, just Enable Volume Icon from here by clicking on the radio button.
➡After doing the setting, most probably the sound icon will start appearing but in some cases, the icon should also be enabled from taskbar icon settings. So to do that:
➡Search for Icons from Windows Search Bar
➡Click on Select Which Icon Appear on the Taskbar option
➡And now enable the same sound or volume icon here as well.
After enabling the sound icon from both Icon Setting and Taskbar Icon Setting, the error will be fixed and you’ll notice that the Sound icon is appearing in the notification area of Windows PC

There is the least chance of being this the reason for this issue but still, you can try and check whether enabling Sound from Device Manager can fix the missing Volume Icon error or not. So for that:
➡Search for Device Manager from Windows Search Bar
➡Then click on Device Manager
➡Now double-click on Audio Inputs and outputs
➡Then right-click on the Speaker option
➡Click on Enable option and that’s it
After enabling it from the device manager the sound or volume icon will start appearing in the notification area of the taskbar.

If the missing Volume doesn’t get fixed with the method, then you can also try Uninstalling and Installing Sound Driver to fix this error. So for that:
➡Search for Device Manager from Windows Search Bar
➡Then click on Device Manager
➡Now double-click on Audio Inputs and outputs
➡Then right-click on the Speaker option
➡Click on Uninstall and confirm with OK
➡Then go to the Action tab and click on Scan for Hardware Changes
➡Now when it gets uninstalled, Search for Realtek Audio driver on Google
➡Download and Install it
➡Then just Restart the PC
After restarting, the issue will be fixed and Speaker will start appearing in the notification area of the taskbar.