So I'm having these problems since late November 2019. Even after I tried reinstalling Windows 10 using MediaCreationTool, Rufus, extract to USB using WinRar. It keeps coming back. I'm tired af of these problems. The problems are, UAC keeps popping up if I tried to eject my USB, regardless of my choice, it still ejects. Another problem is the taskbar bug. That tells you the item may have been deleted or removed. It happens on all of the programs that are pinned to the taskbar. I've tried restart explorer using Task Manager. No luck. Even fresh installs does this. It's so tiring to do this over and over again and it keeps coming. I'm on Windows 10 1909 64-bit version.
View: https://imgur.com/a/ad5krFr
(the link to the taskbar bug)
View: https://imgur.com/a/ad5krFr
(the link to the taskbar bug)