Windows 10 system icons not showing.

Hi,

The concern you have encountered with system icons may be due to a corrupted file or a misconfigured setting. In this case, we suggest that you go through the taskbar settings by simply followwing the steps below and see if it helps.
   

1. Right-click on an empty space in your desktop taskbar and select Taskbar settings.
2. Click Turn system icons on or off.
3. If you'd like to always show all icons, turn the slider window to On.
4. Reboot the PC for the changes to take effect.

If the solution did not work, we suggest running System file check. By doing so, the task will scan for changed or misplaced files. If sfc discovers that a protected file has been overwritten or corrupted, it retrieves the correct version of the file folder, and then replaces the incorrect file. Kindly follow the steps provided by ZigZag3143 (MS -MVP) on this link to perform the task.

If you require any further information, feel free to let us know.

Regards