1
You can right-click on the icons and remove all of them. The right side will collapse when they are all gone and you can drag the corner and set the size of the menu that you want.
0
You can right click to unpin those apps, which are on the right side of your start menu. But the right side will still exist, even though all the apps are gone.
Then you need to click on anywhere on the desktop to close the start menu and click start again. The right side of the start menu disappears.
1From a few articles I saw during the preview, it was possible. What does it look like when you unpin everything? A screenshot would help for the after result. Are there any groups/categories left that you can remove? – MC10 – 2015-08-13T15:57:20.327
use StartIsBack++, which is a lot faster and brings back to much better WinVista/7 Start menu: http://superuser.com/a/946675/174557
– magicandre1981 – 2015-08-13T18:38:59.673