1.    23 May 2016 #1
    Join Date : May 2016
    Posts : 1
    Windows 10

    How to backup Windows 10 upgrade

    I purchased windows 8.1 and got free upgrade to Windows 10. Now my question is if I want to reinstall my OS then I only have Win 8.1 disk with me, what should I do ?. Is there any way to backup the Windows 10 upgrade or else I will have to spend long hours downloading the Win 10 upgrade all over again ?
    Or If I have purchased a Windows 10 for a different system , can I use that disk in any way ?
      My System SpecsSystem Spec

  2.    23 May 2016 #2
    Join Date : Oct 2013
    Posts : 15,600
    64-bit Windows 10 Pro build 14951

    Hello Roshant, and welcome to Ten Forums.

    Since you upgraded to Windows 10, you could use the method in the tutorial below to create a Windows 10 ISO file.

    ESD to ISO - Create Bootable ISO from Windows 10 ESD File

    Afterwards, you could create a Windows 10 installation USB from the ISO file.

    USB Flash Drive - Create to Install Windows 10
      My System SpecsSystem Spec

  3.    23 May 2016 #3
    Join Date : Jul 2015
    Posts : 5,884
    Windows 10 Pro

    And if you don't have the upgrade files still on your computer, you can download the Windows 10 ISO file from Microsoft and create a Windows 10 USB flash drive or DVD from that.

    Windows 10 ISO Download
      My System SpecsSystem Spec

  4.    23 May 2016 #4
    Join Date : Apr 2014
    Space coast of Florida
    Posts : 3,799
    Windows 10 Pro X64 14393.105

    Better yet, do an image backup to an external hard drive. No reinstall required, just restore the image and you're done, 20 minutes or so start to finish.
      My System SpecsSystem Spec

  5.    23 May 2016 #5
    Join Date : Apr 2015
    Posts : 94
    win 10 pro

    You just need to image backup windows 10 in your usb drive or other devices . When needed, you can restore your whole system.
      My System SpecsSystem Spec


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