Click the user account picture tile. Or use the win+x menu.

I have no issues accessing win10 from win7 or win8 or any combination. All I need is to have them all on the same network, then all the machines show up automatically in windows explorer. Since I...

Yep, since April this year you can buy Windows Enterprise without SA.

Try removing the right hand side tiles and then pulling up the menu from the top edge.

You man this app's causing you other annoyances? Must be some TP bug, I have it installed and working without issues.

For those interested in hiding the Search and taskview icons in the taskbar, try the app made by vali20 over at MDL forum

WinTHButtonHider

Advanced users can use set acl or something similar to remove Store app shortcuts from the Start Menu.