Hit your Windows key on your keyboard, it toggles between Icon mode & Old fashioned.
In old fashioned I have a heading 'This PC' (mine is an ACER laptop) left click on that & a panel should appear listing your Windows edition, Your processor & at the bottom 'Windows activation' followed by your 'Product ID'. This will be different when W10 is loaded to the one shown on the label if it came with W8.1.
I think in Old fashioned mode one can do as before & make a shortcut, then click & drag to your opening (Theme) page.
In Icon (Tile) mode Right click on a tile, it then gives options, e.g. Unpin from Start, Resize (the tile), Turn live tile off, or Pin to Taskbar.
Hitting the icon that shows a list in Tile mode gives me a sidebar of all the Apps, hitting one with a Right click gives a list of options similar to the above.
Have fun & a little bit of frustration, especially if you are like me very forgetful these days, now what was I doing 2 mins ago?......

Keith
BTW the above also applies to W8.1, just a slight change in layout.
K