The Windows 10 Start menu is a table of contents to all the apps (programs), folders and contacts you use often. In Desktop mode, all the app icons appear in an alphabetical list on the left side of the screen, and they can be made to appear on the right side as tiles. If the tiles are "live," they can display changing information from the application in real time such as stock quotes or the weather. Sometimes they just cycle through images for entertainment. See live tiles, Win10 abc's, Win10 All apps menu, Win10 Tablet mode, Win10 mouse tips and Win10 touch tips.
The Start Menu
In Desktop mode, the Windows 10 Start menu (Anniversary Update) shows all apps on the left side and their counterpart live tiles on the right. Whether they function as "live" or not depends on the application. Any app from the All apps list on the left can be replicated as a tile on the right.
Retrieving the Start Menu
The Start menu can be displayed in the following ways:
Press Windows key.
Mouse or Touch
Click or tap Windows button.
Retrieving the Apps
To see your apps, do the following:
Mouse or Touch - Desktop Mode
Click or tap Windows button and browse the
list (left) or the tiles (right).
Mouse or Touch - Tablet Mode
Click or tap Windows button, then click or tap
the Tiles or All apps icon and browse.
Launching (Running) an App
You can launch an application multiple ways:
Press Windows key and type the name.
Mouse or Touch
Click or tap Windows button and
click or tap an app icon or tile.
Making an App Become a Tile
Right click or long tap and release the icon in the All apps list and select Pin to Start.
Uninstalling an App
Select Uninstall from the menu that appears after doing the following:
Right click the icon or tile.
1. Icon - Long tap.
2. Tile - Long tap; then tap three-dot icon and Uninstall.
Resize a Tile
If the tile is adjustable, its size can be changed as follows:
Right click the tile and click Resize.
Long tap; then tap three-dot icon and Resize.
Relocate a Tile
Click and drag or tap and drag the tile to the new location.
Remove a Tile (Unpin the Tile)
Tiles can be removed, but this does not disturb the app in the All apps list.
Right click tile and click Unpin from Start.
Long tap the tile; then tap Unpin icon.
Pin a Folder to the Start Menu
In Explorer, right click (or long tap) the folder icon and click or tap Pin to Start (or Unpin to remove). See Win Explorer