Windows 10: Weird Icon

A couple of weeks ago, I saw some random green checkmarks on the bottom left of all my programs on my desktop. I did not see them when I started my computer, and they went away again after a couple of minutes. I assumed that this was one drive that activated itself, so I deactivated it and closed it because I don't want to use cloud services on this device. Today I saw weird little red symbols on my icons. I checked if one drive was running, but it was not. The symbols only went away after I restarted my PC. I made a screenshot of it. I would be very happy if someone could tell me what program

:)

 

Two bugs in GPU-Z - icon and version number

Adding my name to the list of people with weird missing icon problems *Smile

 

Weird desktop icon behaviour on Steam

Yes, they are; however, when I right click on the "blue sphere" icon to change it and browse to the corresponding folder inside the Steam folder, it lets me go through all the steps, but the blue sphere remains. *Confused

 

Windows Icons Weird

Well in the past few days, I was tweaking and now something weird happened. Windows made all the icons become selected blue see in the pic? It is weird, even when I don't click on them they are. Is there a way to fix this?