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Is it possible to upgrade from Windows Vista to Windows 8 and then downgrade from Windows 8 to Windows 7?
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Is it possible to upgrade from Windows Vista to Windows 8 and then downgrade from Windows 8 to Windows 7?
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Yes, but only if you have the necessary Windows 7 licence.
(Retail Windows 8 upgrades do not include downgrade rights or media.)
It is possible, but with some limitations. See http://www.computerworld.com/s/article/9230815/Microsoft_will_allow_downgrades_from_Windows_8_to_Windows_7_Vista
– mythealias – 2012-11-03T12:40:05.660Sure is, make system images of each after they are installed, restore the one you want at any time. – Moab – 2012-11-03T18:49:52.310