Waited til the last. My Win 7 computer came with online free upgrade to be used or loosed some years back. I stashed away the extra hdd with the 7 uped to 10. Now it works fine, but using my desktop email program Thunderbird had issues enough that at least I got some to work, and the rest I just resorted to web based email from ISP that offered them. I may see about the one this supposed to be part of windows if I can find an figure it out. For a moment I thought the computer could not handle Win 10 and made it slow. It was just that each time you swap one drive out and boot another different hdd it goes slow just for a while. Next boots faster. I am concerned though I need to back up this HDD as there is nothing that came with the computer saying back up except for win 7 recovery. No more free upgrade. Mostly I liked using a complete extra hdd that I cloned a whole copy that is bootable. Not simple image that needs time to expand and populate a new hdd if something happens. I used many of these programs that make clones. Trouble is I thought the last one was good, till it did not work. More important is if in the process the originating hdd becomes unusable and the clone also fails. Then you dead in the water. I think an image version created first and see if it can recreate another 2 hdd with win 10. Clone is quicker but that after I have at least 2 copies of win 10 that works with my PC and has all the drivers and programs on it. So this is Bo Derek?