Windows 10

[Bounty Hunter Lani]

Also, did you know that Windows 10, by default, will upload updates from your PC to another random person's PC without telling you? This is to alleviate their servers but it's definitely a shady practice on their behalf. Imagine the bandwidth use! It's literally slowing down your PC (as anything that happens uses up CPU, RAM and Hard drive bandiwdth) AND it slows your internet access! Frankly, I found this outrageous.
Helpful link: How to fix this issue.

Thank you! I had no idea that was a thing 
I'll be checking through the settings a bit more carefully next time, I usually skip "Advanced" options because they usually have useless add-ons in them that do nothing but mess with the computer. 
That... really surprised me. Sneaky Microsoft! 

I do have one thing to add about Windows 10 itself, though:
I'm not so sure OBS is 100% compatible with Windows 10. I noticed that I get 15-20fps off of my games just by recording with Intel Quicksync enabled. Usually, Quicksync doesn't slow things down more than 1-2fps, so this is a dramatic jump that's caused me to rate games that work at normal 60fps without recording as "Unrecordable" because of the 45-50fps while recording. 

Hopefully it just needs some kind of update for Quicksync, and it'll work better as time goes on, but I REALLY don't want to decrease the quality of the recording to ensure the 60fps stays 60fps.