Plus what you can do as a last resort
How to Fix Icons Not Showing on Taskbar in Windows 10
The Windows 10 system tray (notification area) is located on the right side of the taskbar and provides access to system notifications, features, and apps.
The system tray also contains shortcuts to important settings, such as the network, power, volume, and Action Center icons.
If you hover over your system tray and see that the icons you use are missing, there are a couple of reasons why this is happening. You may have installed a Windows Update, which caused a glitch, or there may be corrupted registry entries that seem to conflict with Windows 10, causing the system tray or icons to disappear.
