You can name your groups, too. Mouse over the empty space above each group, then click Name group once the text appears. Give the group a name, then press the Enter key. While you're at it, go ahead and rearrange your groups by dragging the drag thumb that appears (look for the two horizontal lines that appear near the right-hand edge of the group's name bar).
Resize the Start menu
Now that you have your Start menu arranged just the way you want it, why not resize it? Mouse over either the top or right-hand edge of the Start menu until the resize pointer appears, then click and drag to resize it, just as you would resize a window. The Start menu doesn't take up the entire screen by default, but if you're feeling nostalgic for the old days of Windows 8, you can easily change that.
Pop open the Settings app, select Personalization, then select Start from the left-hand column. Next toggle the "Use Start full screen" switch to the on position. The next time you open the Start menu, it'll take up the entire screen, save for the taskbar at the bottom.
Windows 10 has a few other options for the Start menu that we won't cover exhaustively here, such as the ability to hide the "Most used" section and to pick which folders you can access via the Start menu. To get to these, open the Settings app, then go to Personalization > Start. Play around with the various options and get a feel for what works best for you.
Sign up for CIO Asia eNewsletters.