This video shows you how to install SQL Server on-premise (on your laptop or local server).
The actual time it took me from downloading to finish installing the SQL Server is roughly 25 minutes (it can vary depending your internet speed and your laptop performance). In order not to bore you however, I cut it into a 9-minute video without leaving important steps and information out.
The download link:
https://www.microsoft.com/en-us/sql-server/sql-server-downloads
