Thank you SO much Paul.
I downloaded it and made it bootable, and I clicked "Install" and it worked fine. No error about the serial key! I installed Windows and got everything working fine, and now I'm trying to install my drivers for my laptop. May I ask you one more question? When I re-installed Windows, I had to change the BIOS setting to Legacy Boot mode, and to disable secure boot. Now that Windows is re-installed, I just tried to change the BIOS settings back to the default (UEFI mode), and it says "Boot Device Not Found". But yet, if I change the BIOS back to Legacy, it boots fine. Is there a way to fix this?
Thanks, and sorry for all the questions.
-Chris