The Microsoft Media Creation Kit will create the install USB or DVD. (google to find it?)
HOWEVER, W10's license is OEM style so my bet (I've won each time here) is you end up buying a new license. The old board is worth a lot since it has the W10 license tied to it.
As to office and photoshop they will be lost so no big as you reinstall again. Once in a while you run into folk that have software they don't know how it was installed. Those titles are gone until they sort that out.
I am swapping out my Ryzen 5 1600 to an intel i5 8600k (not looking for advice on one vs the other). Looking for advice on how the install and post install will go. I will do some updating of the BIOS first. I have a laptop should I need any drivers. I have windows 10 on a 250gb ssd (boot drive) and a 1TB hard drive that contains pretty much everything else. When I swap out the motherboard I would assume I would just want to plug in the SSD but will need a fresh install of windows. Is this correct? Will I need the windows ISO on a flash drive? Or will it boot from my SSD? Is there anything else I will need to watch out for? Anything I should be aware of? Or will I just move through the setup as if it was new but have everything installed on my hard drive? Also I have office and photoshop on my current PC will it cause major issues moving to a new motherboard? I built my first compute and did the full install myself just checking on how this process will go.