The last time I built a machine from scratch was about 10 y ago, from CD. A lot has changed, need advice on uefi boot vs. legacy boot. Is it worth the effort? Also, I am a bit confused as to where to get the win 10 iso for both pro and LTSC versions, and the Office 2019 iso as well. Please use as little jargon as possible, I am already dealing with enough new stuff in the build. Thanks for any help!