Yes, much easier. You have just written it in an unnecessarily long winded manner.
“Check exact version of operating system you have (Windows 10 Pro, Windows 10 Home) and write it down”
Why? ????
Why would they need to go into the BIOS to boot from USB? Why not directly to the Boot Menu?
You are still writing a lot of nonsense with regard to fonts etc, for a recently purchased second hand PC.
Clean install is always best if you have just been installing stuff on top of someone else’s installation.