To do that, press Win+I to open the Settings ... as you can see in the above screenshot. Similarly, you can make the desktop icon of File Explorer and other desktop items invisible.

If nothing is working, you can reset the Taskbar. Basically, you are combining both the above suggestions 4 and 5 by running a bat file to delete the icon from the Taskbar. To do so, press Win+R ...

To do so, just tap on the icon until it turns gray and you're good to go. You can also open the Settings app on your iPhone, and then tap the Do Not Disturb tab. Simply tap the green lever to ...