Confused About Clean Install of Windows 10 On UEFI PC

Discussion in 'Windows 10 Upgrade and Installation' started by Spotted Dog, Jul 31, 2015.

  1. Spotted Dog

    Spotted Dog Honorable Member

    Joined:
    May 7, 2009
    Messages:
    16
    Likes Received:
    0
    I successfully upgraded Win 8.1 to Windows 10 via Windows Update. I also created an install DVD using the Media Creation Tool. Sometime soon I would like to do a clean install using this DVD, so I can get rid of a lot of junk on my PC and start out new.

    I assumed I would just put the DVD in my DVD drive, restart to boot from the DVD and do a "custom" install Windows 10 on drive "C" formatting drive "C". That's the way I always did it with other versions of Windows.

    But, looking online about a clean install on a UEFI PC it seems I must delete everything (all partitions) on the drive, use 3rd party apps to create 4 new partitions, rebuild the UEFI partition, etc, etc before I can reinstall Windows 10.

    This is my first experience with a UEFI PC and all that is way beyond my level of expertise. Is all this true, or can I just pop in the DVD (made from the Media Creation Tool and the original ISO download) and reinstall Windows 10?

    Thanks
     
  2. Sonny

    Sonny Fantastic Member

    Joined:
    Nov 17, 2009
    Messages:
    1,258
    Likes Received:
    93
    To do a clean install you need to delete the partitions or you could say start from scratch. If you do that be sure to get find your product number first. You can do that by using jelly bean or speccy. You will need that to do a clean install.
     
  3. Spotted Dog

    Spotted Dog Honorable Member

    Joined:
    May 7, 2009
    Messages:
    16
    Likes Received:
    0

    Yes, I do have my product key, but do I need to get 3rd party utilities, etc. and rebuild my UEFI partition and recovery partition, etc, or does Windows do that on the install.
    Do I really delete ALL the partitions on my ssd including hidden partitions? How do I delete the UEFI and recovery partitions? Disk manager will not let me do it?
    Here ( Windows 10 - Clean Install) is an example of what I am talking about.
     
  4. senthiele

    senthiele Honorable Member

    Joined:
    May 14, 2009
    Messages:
    16
    Likes Received:
    0
    I like to know also. Am thinking of doing the same so let me know what u find out ty
     
  5. Saltgrass

    Saltgrass Excellent Member
    Microsoft Community Contributor

    Joined:
    Oct 16, 2009
    Messages:
    15,157
    Likes Received:
    393
    As Sonny mentioned, you would need to delete the partitions critical to the install. That would mean Recovery, System EFI, MSR, and OS partitions. If you have Data partitions you can leave those.

    I suppose the best way to remember is the install cannot recreate or modify partitions if they are already present. You can delete these during the install process and install to the unallocated space.

    You should not need a License Key for windows 10, that information is kept online once you have done a legal upgrade. Whether you will have needed to sign into a Microsoft Account to finish that registration is still unclear but to be safe, you probably should do so.
     
  6. Spotted Dog

    Spotted Dog Honorable Member

    Joined:
    May 7, 2009
    Messages:
    16
    Likes Received:
    0
    Thanks. That seems to clear things up for me.

    I used Windows Media Tool and burn that to a DVD. Can I just boot to the DVD and get all the options need to reinstall with UEFI. Or do you recommend creating a USB drive by running the Rufus utility and installing from that?
     
    #6 Spotted Dog, Aug 1, 2015
    Last edited: Aug 1, 2015

Share This Page

Loading...