2 m.2 drives but one already has Windows installed.

[OAidiO]

Hello. I'm building a new PC and still have my M.2 drive from my old one. Will I run into any problems adding this one and the new one into my motherboard when I first turn it on. I wasn't able to wipe the m.2 before taking it out of my old build. It still has Windows 10 installed, will this boot into windows or will I have to wipe it and so a fresh install. I've only built a few PC's in my time but I've always used a new hard drive and never 2 m.2 drives. Thanks for reading.

 

[OAidiO]

Thanks mate. If it was yourself would you set it up with the clean drive and fresh install of windows then add the other one and wipe it or just crack on as you said? Thanks again.