Not sure If my title is clear but here is what I would like to accomplish. My apologies if this has been answered somewhere else or needs to be moved.
Download the free upgrade on my existing win 7 laptop but not install it. Make an ISO from the downloaded ESD file as noted in the tutorials. Then remove my hdd which has win 7 installed and replace it with a new SSD. Then using the ISO proceed with a clean install of win 10. Would this work? Or does the ESD/ISO file 'tag' the hdd in some way that would prevent it from installing on a new hdd? If anything goes wrong during install or have issues with drivers later on I could always swap back in my win 7 hdd and be up and running like nothing happened. New to all this but little weary of doing an upgrade since In case I need to install win 7 back for some reason its a long process instead of just swapping hdd's. Thanks!