ssd to hdd

Hello, I just ordered an SSD as I have run into a problem with slow boot times and a tough time loading into games. When I install my SSD do I have to completely reinstall windows 10? Or is there a way I can just move it from my HDD to my SSD by copying it from my HDD and then pasting it into...

So I currently have both a ssd (256gb silicon power ssd) and hdd (2tb seagate barracuda 7200rpm) in my PC right now. I also currently have windows 10 and some files and applications on my ssd. Everything else is on the hdd. The problem I was having was that my pc randomly freezes and is followed...