Here's a funny one. The joke's on Microsoft! My laptop (T510) has the Win10 upgrade icon. When I click on it, this is what it tells me:
Whoa! Since I have the Win10 ISO on a DVD, I decided to try that. Same result if I let it check for updates. But! If I disconnect the Internet cable and use the DVD for direct upgrade of Win 7, it worked just fine. And here's a sample:
The neat thing is, when I put in the Win 7 SSD, there will be no MS attempt to upgrade, because it says "No Can Do." Amazing. Microsoft hoisted on its own petard.
