1.    04 Feb 2016 #1
    Join Date : Jan 2016
    Posts : 9
    Windows 10 Build 10586

    Can I add Win 7 (multi-boot) after Win 10 is on other partition?

    I upgraded my Windows 7 to Windows 10. Now I would like to have a multi-boot. If I install Windows 7 on my blank 150 GB partition, will Windows 10's boot sequence recognize it so that I have a working multi-boot?
      My System SpecsSystem Spec

  2.    04 Feb 2016 #2
    Join Date : Oct 2013
    Posts : 15,624
    64-bit Windows 10 Pro build 14951

    Hello edkugler,

    Only if you had another product key to activate Windows 7 with since Windows 10 is currently activated with your original key.

    If you try to activate both with the same key while both are installed, both will eventually be deactivated.
      My System SpecsSystem Spec


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