New
#1
Hey alex108. I had the same problem you're facing and I was able to solve it. This is a Group Policy issue!
To solve, open up the Run command (Windows + R) and type in gpedit.msc.
Okay, so now I don't know exactly how the menus are called in english, so I'm just going to show you where to go now:
Double-click the highlighted setting and set Disabled. I think only the highlighted setting in the image is enough, but you might want to disable the one right before it too like I did, just to be sure live tiles notifications will also work.
That's all! Open up settings > notifications and actions and the option should be now enabled!