How to revert back to PC from Hackintosh?

A few months ago, I did a Hackintosh on my PC and it worked fine running Catalina. Now, I just bought myself a 2nd hand Macbook Pro and would like to revert my old PC to Windows so that I could gift it to my dad who loves old PC games like Red Alert 2, Battle Realms, and CS:GO. Is there anyway to revert my Cloverfield Hackintosh back to Windows 10? Is there an existing guide? Thank you!

submitted by /u/animonafolder
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