you can start microsoft word by using which button

You can start Microsoft Word by using the Start button on the Windows taskbar.

Quick Scoop

For most exam-style or textbook questions, the expected fill-in-the-blank answer to
“you can start Microsoft Word by using which button” is:

Start button

On a typical Windows PC, that means:

1. Click the Start button at the bottom-left corner of the screen.
2. Go to All Programs/All Apps (if shown).
3. Find Microsoft Office or Word.
4. Click Microsoft Word to open it.

Sometimes the same idea is phrased as “using the Start Menu ,” but the core button they are asking for is the Start button. TL;DR: The correct answer is: Start button.