Windows 10: How to set up a dual boot of Windows 7 with pre-existing 10?

  1.    16 Apr 2016 #1

    How to set up a dual boot of Windows 7 with pre-existing 10?


    I am troubleshooting a problem with odd black screens when installing AMD video card drivers in Windows 10. ref. Black screen when installing AMD video drivers - Windows 10 Forums

    Anyway, I was thinking of quickly installing Windows 7 on a spare partition, so I can better see (or rule out) if the graphic card hardware is the issue.


    Are there any issues I should be aware of setting up a dual boot when 10 is already installed? I am no expert, and I'm a bit worried the the Windows 7 install will mess up the Windows 10 master boot record. It will be the same physical drive, but a different partition.

    I will probably want to restore the boot configuration to Windows 10 only after testing.
      My System SpecsSystem Spec

  2. Fafhrd's Avatar
    Posts : 1,320
    Windows 10 x86 14383 Insider Pro and Core 10240
       16 Apr 2016 #2

    Solved Reinstalling Windows 7 on 7/10 dual boot breaks dual boot - Windows 10 Forums

    topgundcp said: View Post
    Boot into Windows 7. Open Disk Management and note the drive letter for Windows 10 then open Admin Command Prompt and type:
    bcdboot X:\Windows
    where X: is the drive letter of Windows 10 OS.
    The above shows the fix if installing Windows 7 alongside Windows 10 breaks the Windows 10 boot.

    Another useful tool is EasyBCD - register the non-commercial full version free:

    EasyBCD - NeoSmart Technologies
      My System SpecsSystem Spec

  3.    17 Apr 2016 #3

    Thanks Fafhrd.
      My System SpecsSystem Spec

  4.    18 Apr 2016 #4

    I'm not a fan of dual-booting, but since this is a temporary install, why not just pull your Windows 10 drive and install a spare for Windows 7. Do your testing and then remove the temp drive, replacing it with your Windows 10 drive. Guaranteed not to damage the 10 drive's install.
      My System SpecsSystem Spec

  5.    18 Apr 2016 #5

    DeaconFrost said: View Post
    I'm not a fan of dual-booting, but since this is a temporary install, why not just pull your Windows 10 drive and install a spare for Windows 7. Do your testing and then remove the temp drive, replacing it with your Windows 10 drive. Guaranteed not to damage the 10 drive's install.
    ]


    I like this idea.
      My System SpecsSystem Spec


 

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