Did Windows 10 Anniversary Edition affect taskbar in full screen mode?

Normally when any game is played in full screen mode, the taskbar is hidden; this has been Windows behaviour for forever. Yesterday I update my Surface Pro 3 with the anniversary edition. Today I played 2 seperate games, and now both will show the taskbar over their screen which, if clicked on, hides the game; in affect, the game now acts as a window which is not the same size as the desktop. Has anyone else noticed this change?

P.

I have the same problem, all games in full screen now have taskbar, VERY annoying in games where i can accidentaly click on taskbar, window lose focus and i lose cos of chaos when i click buttons and game not read them, but windows do and i lost in windows and options i dont even know, specialy in mmo etc

or in games like LOL, when i use borderless window i have taskbar, and when i click full screen i dont have taskbar but i get like 20fps, weird sound problems and freeze and bsod after few mins....

there is no way to play games like that, WTF windows

and ofc, i get bsod when im using utorrent etc to download anything cos windows know better than me what drivers should install and dell cant fix drivers from w10 release 1y ago....