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#10
Also, they'd probably have to make a code change to the Windows 7/8.x activation processes, for no gain.
Also, on this Microsoft page:
http://windows.microsoft.com/en-gb/w...covery-options
The 'if go back isn't available' section is by implication if you want to go back after 30 days.Go back to your previous version of Windows
For a month after you upgrade to Windows 10, you’ll be able to go back to your previous version of Windows from Settings > Update & security > Recovery. This will keep your personal files, but it’ll remove apps and drivers installed after the upgrade, as well as any changes you made to settings.
{SNIP}
If go back isn't available
- Check to see if you can restore your PC to factory settings. This will reinstall the version of Windows that came with your PC and remove personal files, apps and drivers that you've installed, and any changes you've made to settings. Go to Settings > Update & security > Recovery > Reset this PC > Get started and look for Restore factory settings.
- If you created a recovery drive before upgrading to Windows 10, you might be able to use it to restore factory settings (even if the option isn’t showing up in Settings). For more information, see Use a recovery drive to reinstall Windows.
- If you have installation media and a product key for your previous version of Windows, you can use them to go back. Get the details in Using installation media to reinstall Windows.