About that free windows 10 upgrade and possible issues

I had this icon this morning on windows 7 to show there is a free update for windows 10.
There doesn't seem to be an (easy) way to make it disappear so i pressed okay for the heck of it (it just reserves it and supposedly doesn't install anything) but after that shortly my internet pages didn't load properly anymore, so i rebooted, then i only got black screens, even in safe mode.
Only after several reboots everything seems okay again. It might be a coincidence but i would be careful if i were you by accepting it.

But is there any way to get rid of that icon?