I just love how the start menu will not show, and even pressing windows-E will not work if you have a mapped network drive that is very very slow to respond. 10 was fine with this.
And how they have not fixed the long standing since 95 era problem where if you drag your files over an icon in the left side of explorer that is slow to respond, the whole window will freeze up for an eternity but you have to sit there with your finger on the mouse still because if you let go it will drop the file into whatever is under the mouse when it finally decides to start responding again.

