Apologies if this is a tremendously simple question, it's been so long since I've had to do anything like this. I have a 60 GB SSD from 5 years ago that has always been my Windows 7 drive, but after Windows growing to use up the majority of this space I decided to get a 250 GB SSD to replace it. What's the best way to go about upgrading? I'm not averse to just starting from scratch. What I'm unsure about is, is there any problem with using the same serial number as I used for the previous Windows install? Is there any issues with this being tied to the old SSD? I've also signed up for the free Windows 10 upgrade, do I just have to repeat the sign up when I reinstall on the new drive?