Windows 10: Unknown task when switching with Alt+Tab

I made a modifications to my Windows 10 to get the old behaviour of Alt+Tab image below, i.e., to show the application icons of the tasks being switched rather than previews of their windows. Recently, however, when I Alt+Tab, I see an unnamed task on the far left image below. How can I find out what this task is? I really don't need the additional cognitive noise of random unidentified tasks popping up.I realize that when the Start menue is showing, Alt+Tab will show such an unidentified task, but that isn't the explanation here. The unidentified task does not appear on the taskbar.

:)

 

ALT + TAB Not switching on release


Hi,

I've been having a bit of trouble with Windows the last few days, which has to to lead me to reinstall it over my current windows. Just mentioning it in case it might be relevant.

But my problem is that I'm used to having to press ALT+TAB and it would display the open programs, and when I release the combo, it would switch me to the program. But now I've noticed that when I press ALT+TAB, and release the combo, the little UI thingy still stays open and I either need to click the choice or press enter or something. And this is really annoying since I switch programs on a regular basis and this extra step feels unnecessary.

 

alt + tab not working

*Confused I can alt tab back even if i don't have another program to switch too.

 

alt + tab not working

Alt+Tab only works if there is something in the background to switch to. If there is nothing to switch to (the game that has focus is the only thing running), the command isn't executed.