1. Joined : Oct 2015
    Posts : 19
    windows 10 home
       17 Nov 2015 #1

    Clean install questions

    I just upgraded my computer from 7 to 10 from the free upgrade using windows update. I now want to do my clean install but have a couple questions before i do it. The first is about activating i read somewhere that you can use your windows 7 key with the new build. So do i enter my key during install or wait until the OS is done. The other question is in my BIOS under the boot menu i have both UEFI and legacy boot. So what one should i use to install windows 10 on?
      My System SpecsSystem Spec

  2. Joined : Mar 2015
    Posts : 1,075
    Windows 10 Pro x64
       17 Nov 2015 #2

    You won't need a key to activate Windows 10, as it has already been done. The clean install will finish and show as activated.

    As for the BIOS, I'm going to say you want UEFI, but others will be able to shed better light on this part of your question. I'm about to build a new tower, so I'm curious as well.
      My System SpecsSystem Spec

  3. Joined : Jan 2015
    SoCal, USA
    Posts : 463
    Windows 10 Home and Pro
       17 Nov 2015 #3

    As said, you won't need a product key to install to your computer, just clean install via CD or USB, and it does all of that for you (since you've already upgraded). As for UEFI... I like it, it is the newer, faster way of doing the BIOS, so I recommend using it.

    Follow the tutorial and it will show you how to use UEFI: Windows 10 - Clean Install - Windows 10 Forums
    NOTE: the tutorial is step by step, but step 12 is how to install WITHOUT UEFI, and 13 is how to install WITH UEFI. Make sure you read, before you follow the step.
      My System SpecsSystem Spec

  4. Joined : Oct 2015
    Posts : 19
    windows 10 home
       17 Nov 2015 #4

    Thanks for the info very helpful. I'm making my usb installer right now.
      My System SpecsSystem Spec


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