Let’s keep it short. There are 2 options (there are more):
Option-1: Longer, manual, half DIY option.
Go to https://gnuwin32.sourceforge.net/packages/make.htm and download setup

Click any one of the highlighted options
It’ll take you to sourceforge.net and start the download.
Open the downloaded installer and hit next → next → next… (accept license)
Remember to note the install location.