Results 1 to 4 of 4

Thread: Overwrote Windows 8 with Ubuntu

  1. #1
    Join Date
    Jul 2010
    Beans
    6
    Distro
    Ubuntu 10.04 Lucid Lynx

    Overwrote Windows 8 with Ubuntu

    I apologise about this being mostly about Windows, but do need some help.

    I first had a Windows 8 64bit installation (pre-installed) and wanted to install Ubuntu on this laptop. But i was stupid and didn't doublecheck and i've now overwritten my Windows 8 installation with Ubuntu 64bit. Which normally would be fine, but i need some Windows applications for work, and really want to get it back.
    Since i've still got my Windows 8 code, i thought i could just re-download an iso and install and use my code to activate it. Nopp, i can't. I disabled secure boot (and uefi?) to be able to install Ubuntu, but now i can't install Windows 8. I made a seperate partition for it, but it said it couldn't install into a GPT partition, even though i selected a Windows 8 64bit iso. This is what my partitions look like right now;
    http://i.imgur.com/lacbP4w.png

    Now i'd love to be able to keep my Ubuntu, and i realise that if i do manage to install Windows 8 i have to fix grub through boot-repair and i know how to that. It's just that i don't know how to figure out how to re-install Windows 8 since i overwrote it. Any help would be greatly appreciated!

    Cheers

  2. #2
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Overwrote Windows 8 with Ubuntu

    I do not know if standard Windows installer works with UEFI or not. But everyone has said you have to boot installer in UEFI mode to install in UEFI mode. Windows will only boot in UEFI mode when drive is gpt partitioned.

    You still have the msres or Microsoft reserved partition which must be just before the main Window NTFS partition. You cannot have Ubuntu inbetween.

    Windows has specific requirements for partitions.
    Microsoft suggested partitions including reserved partition for gpt & UEFI:
    http://technet.microsoft.com/en-us/l...8WS.10%29.aspx
    Older Windows info on gpt - 2008 updated 2011
    http://msdn.microsoft.com/en-us/wind.../gg463525.aspx
    Windows technical info on gpt and GUIDs
    http://msdn.microsoft.com/library/wi...sktop/aa365449
    Order on drive is important:
    http://en.wikipedia.org/wiki/Microso...rved_Partition
    Windows 8 info
    http://technet.microsoft.com/en-us/l.../hh824947.aspx
    Older Windows info on gpt - 2008 updated 2011 for Windows 7
    http://msdn.microsoft.com/en-us/wind.../gg463525.aspx

    Some threads where users show partitions
    http://ubuntuforums.org/showthread.php?t=2081311

    Samsung Ultrabook Windows 8 & Ubuntu & recovery boot Disk view of partitions post 7
    http://ubuntuforums.org/showthread.php?t=2097690

    And if you look at the BootInfo reports from any of the UEFI threads you will see the partitioning those users have.

    Some older info on UEFI with WIdnows 7.
    Prepare an usb thumb drive, to boot windows 7 in UEFI mode
    http://forums.lenovo.com/t5/tkb/arti...article-id/177
    Convert Windows USB flash install to UEFI boot
    http://jake.io/b/2011/installing-win...x220-from-usb/
    http://technet.microsoft.com/en-us/l...=ws.10%29.aspx
    Last edited by oldfred; March 29th, 2013 at 04:32 PM.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
    Join Date
    Jul 2010
    Beans
    6
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Overwrote Windows 8 with Ubuntu

    So stupid question, but how do i move the partition, specifically so the msres and the ubuntu one swap around, as you suggested?
    Also, i can't find any UEFI settings at all in my bios, which is what makes it weirder. I can set it to boot legacy mode, disabled fast boot and secure boot, but still nothing that says uefi or anything. Still feel a bit lost.

  4. #4
    Join Date
    Nov 2009
    Location
    Mataro, Spain
    Beans
    13,139
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Overwrote Windows 8 with Ubuntu

    If you are willing to also reinstall ubuntu, I would actually do it another way. The computer came with win8 and gpt partition table on the disk, which has never changed so far. So, if you booted the win8 dvd in legacy mode, it will not install on gpt.

    BUT, making a legacy dual boot is MUCH, MUCH BETTER and easier than uefi dual boot. So, if you don't mind reinstalling ubuntu, I would backup any data from it, boot with the ubuntu cd in live mode, write a new blank msdos table on the hdd.
    Then install win8 in legacy mode (make sure to keep the bios setting to boot in legacy mode only) making a partition on the hdd with the size you want for win8 (don't let it take the whole disk).
    After that is done, boot with the ubuntu cd and install it.
    Now you have legacy dual boot.

    Making an uefi dual boot still has many issues and even if you do install win8 in uefi mode, you will still need to do the same for ubuntu, and hope it works out fine. Legacy dual boot works great.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 14.04 LTS 64bit & Windows 10 Pro 64bit

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •