Windows 10: Cannot boot to windows after installing ubuntu on another drive

Discus and support Cannot boot to windows after installing ubuntu on another drive in Windows 10 Installation and Upgrade to solve the problem; Hello! So I I just got a new SSD and everything is installed but then I installed ubuntu on my previous main drive and now there's no options or way to... Discussion in 'Windows 10 Installation and Upgrade' started by frza45, Jul 23, 2021.

  1. frza45 Win User

    Cannot boot to windows after installing ubuntu on another drive


    Hello! So I I just got a new SSD and everything is installed but then I installed ubuntu on my previous main drive and now there's no options or way to get into windows 10. I have an MSI motherboard and it's boot options are not great IMHO. - I Already had this working but after the SSD upgrade it seems to have gotten more complicated. I have 4 drives hooked up to it right now, I had 3. a 250 gig SSD ubuntu installation, a terabyte SSD for main windows 10 a small SSD that is not really doing much., and a 2 terabyte backup drive. TL;DR - I have more than one hard drive and everything was j

    :)
     
    frza45, Jul 23, 2021
    #1
  2. topgundcp Win User

    Help with dual booting Win 10 and Ubuntu

    This is your whole problem. What you should have done is to put GRUB in sdb1 and Windows Manager in sda1 so that Windows Boot Manager is in control.
    So what suggested above will not make any difference. GRUB is still in control of booting process.
    To fix your problem. You will need to:
    1. Move GRUB from sdb to sdb1
      |grub2 - how to move grub boot from one partition to another in linux - Ask Ubuntu
    2. Rebuild The Windows Boot Manager ie. create a brand new BCD to boot Windows 10.
    3. Once done with steps 1 and 2 above. Windows will not know UBUNTU exists and vice versa.
      Depend on the priority set in the BIOS, it will boot directly into that OS.
      However, you can boot either one from Boot Menu (Using whatever key that your Laptop assigned to: F2, F10....)
      Since I hate Dual Boot and seldom boot into Linux, I will stop here.
      Now, go to step 4 to create dual boot.
    4. Use Easy BCD to create an entry for dual boot with UBUNTU. Once done, you should get a nice GUI dual Boot Menu
      and it will boot directly into either Windows or UBUNTU.

    Here's the detailed explanation: How can I move windows 10 boot files to another drive to allow linux
     
    topgundcp, Jul 23, 2021
    #2
  3. Can install Windows, can't install Linux

    Are you doing a clean install?

    Also if you are doing a clean install may I suggest this. Delete and format all partitions and let Ubuntu allocate the drive. You might have some MBR files left on the HD that is conflicting with Ubuntu booting.
     
    TheMailMan78, Jul 23, 2021
    #3
  4. Cannot boot to windows after installing ubuntu on another drive

    Windows 10 boot menu only gives me 'turn pc off' option while installing Ubuntu Operating System on it.

    Hi Alinaalam,

    I realize the inconvenience you are experiencing with Windows 10. I will certainly help you.

    I suggest you to refer to the suggestion provided by Linux website regarding the dual boot of Windows 10 and Ubuntu.

    Dual-Boot Ubuntu 15.04/14.10 And Windows 10/8.1/8: Step By Step Tutorial With Screenshots - Linux.com


    Welcome to the Ubuntu installation guide:

    Installation - Community Help Wiki

    If you still facing the further issues, then I recommend you to post your query in the
    Ubuntu forum for further support.

    Ubuntu Forums

    Please get back to us with an update on issue with installing Ubuntu in Windows 10, we will be happy to help.

    Thank you.
     
    Nyima Yonten, Jul 23, 2021
    #4
Thema:

Cannot boot to windows after installing ubuntu on another drive

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