1.    30 Jul 2015 #1
    Join Date : Jul 2015
    Posts : 25
    Windows 10 Home 64 Bit

    Low Level Format, Then Clean Install Windows 10?

    In the past, whenever I have installed or reinstalled an OS I always did so after wiping the drive clean via a third party app such as Kill Disk. Probably unnecessary, but what the hell.
    Currently running Windows 7 Pro and am now readying for Windows 10.
    I understand the first install of the new OS must be an upgrade over 7. Haven't done this yet but I will. It's after this that I can do a clean install, correct? My question is if I run Kill Disk after the upgrade, in essence having a factory fresh hard drive, and then pop in the Windows 10 DVD I just made, will it install?
      My System SpecsSystem Spec

  2.    30 Jul 2015 #2
    Join Date : Oct 2013
    Posts : 15,608
    64-bit Windows 10 Pro build 14951

    Hello Carbo, and welcome to Ten Forums.

    Yes, you are supposed to be able to do a clean install of Windows 10 on the same PC if you upgraded first like below. The activation servers have been overloaded, so it may not activate right away though.

    Can I reinstall Windows 10 on my computer after upgrading with free upgrade?

    Once you’ve upgraded to Windows 10 using the free upgrade offer or Media Creation Tool on an activated Windows 7 or 8.1 PC, you will be able to reinstall, including a clean install, on the same device. You won’t need a product key for re-activations on the same hardware. If you make a meaningful change to your hardware, you may need to contact customer support to help with activation. You’ll also be able to create your own installation media like a USB drive or DVD, and use that to upgrade your device or reinstall after you’ve upgraded.
      My System SpecsSystem Spec


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