How to cure explorer.exe or taskbar on top of all windows?

Question

Windows

The taskbar is zadolbala, almost always on top of all windows, if you start a full screen video, then you need to click on the taskbar, then again on the video and then it disappears, but it's PPC what a hemorrhoid, in games the same thing sometimes. I read that it is necessary to kill the explorer process in the processes and run it with admin rights, did it, it helped but for 5 minutes -_-
who will advise what? There are no viruses. Third-party software too, everything is as always.
UPD

spoiler