So I recently made my first computer: Pcpartpicker.com/p/T2rzhM
When windows was at 33%, the computer just shut down. My first suspect was the power supply. I did the paper clip thing, and found out it was dead. Windows didn't finish installing.
Will I be able to reinstall windows (I have the oem), and how could I find out if the power supply messed up my other parts?
Your PSU is under warranty, and from personal experience, Amazon can replace goods very well within 2 days (if you bought from them), other companies should send you a free one because of warranty. Then put it in, and hook up the parts.
Of course you can reinstall Windows! Make sure to format your drives before during the Clean install to get optimal performance. To do this make sure to delete all existing partitions.