Wait! You only get one chance to do this right. Before you run setup.exe, there are some basic configuration steps that will make all the difference in performance and troubleshooting. Brent Ozar will explain his SQL Server Setup Checklist covering the page file, service accounts, memory settings, and hardware stress testing. We won’t cover scripted installations or slipstreaming — this half-hour session is for folks who click through the setup GUI because they only install a few servers per year.

https://www.youtube.com/watch?v=r7n1L5G1mZs

For the full details, check out our SQL Server Setup Checklist.