Will I need a new key for this process? Will Windows deactivate and force me to buy a new one?

Wish I could.
114698
Any other possibilities?

Sorry, I don't know if you get notified of new replies to a post. ¯\_(ツ)_/¯

I wish I could do that, but the thing that I turn on displays this image...

@Brink
I wish I could do that, but the thing that I turn on displays this image
https://tse4.mm.bing.net/th?id=OIP.Mbe25f86d9052b8f28ffcd2c5a7428ed6o0&pid=15.1

In fact, the slide option for...

I am running windows 10 (If it helps, my computer started out with Win 7) with no previews or builds. I can't find any way to allow me to change the sign-in screen to the same as the lock screen. I...