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Thread: How to install ubuntu over (not side by side) Windows 10?

  1. #1
    Join Date
    Aug 2013
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    83

    How to install ubuntu over (not side by side) Windows 10?

    I have an old laptop. I installed Windows 10 temporarily (no product key). I want to fresh install ubuntu and wipe out Windows 10. How can I do that?

    I downloaded ubuntu 20 LTS iso, and burned it on DVD, inserted the DVD, installed ubuntu. But ubuntu does not start. Side by side installation of ubuntu seems to be the default mode. How can I avoid this and fresh install (format hard drive)? Thank you.

  2. #2
    Join Date
    Aug 2006
    Beans
    13,284
    Distro
    Ubuntu Mate 20.04 Focal Fossa

    Re: How to install ubuntu over (not side by side) Windows 10?

    There should be an option of "Erase and install Ubuntu", likely after the dual boot one. All you need to do is select it, and proceed.
    For more info, check the installation guide:
    https://ubuntu.com/tutorials/install...te-drive-space

  3. #3
    Join Date
    Jun 2010
    Location
    London, England
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: How to install ubuntu over (not side by side) Windows 10?

    Side by side installation of ubuntu seems to be the default mode. How can I avoid this and fresh install (format hard drive)? Thank you.
    Not default. We get options. See section 6 of the Ubuntu install guide

    https://ubuntu.com/tutorials/install...te-drive-space

    : Options related to side-by-side installation or erasing a previous installation are only offered when pre-existing installations are detected.
    Selecting to erase disk and install Ubuntu would have removed Windows. Over the years few people wanted to erase an existing install of Windows. They often had some need to use Windows. So, the option to install side by side was given prominance.

    Does this old laptop have a BIOS or UEFI motherboard? I assume that Windows 10 was installed in UEFI mode. If so, then Ubuntu must be installed also in UEFI mode. Otherwise problems like this happen. This guide explains it all.

    https://help.ubuntu.com/community/UEFI

    Regards
    Last edited by grahammechanical; July 10th, 2021 at 07:24 AM.
    It is a machine. It is more stupid than we are. It will not stop us from doing stupid things.
    Ubuntu user #33,200. Linux user #530,530


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