Dual Boot, Windows 10, Ubuntu Problem

  1. Posts : 22
    Windows 10

    Dual Boot, Windows 10, Ubuntu Problem

    I have a dual boot system that had been working fine until yesterday.

    Now when I go to boot Windows the grub menu shows

    "Windows Recovery Environment (loader) (on /dev/sda3)"

    This leads to a window splash screen that last for about 10 second and then I get a black screen and the system goes no further.

    It would seem that grub information on how to find the windows loader has become corrupted.

    Any ideas on how to solve this will be appreciated.
      My Computer

  2. Posts : 8,691
    Mac OS Catalina

    Grub2 is what is used now. How to Configure the GRUB2 Boot Loaders Settings

    The issue is that Windows will screw up Grub2, if you make changes.

    When you change anything in Grub, you have to write it, so that the Linux Kernel understands what you are doing. You always have to run sudo update grub. Otherwise it does not take.
      My Computer

  3. Posts : 22
    Windows 10
    Thread Starter

    Boot Problem Solved

    The boot problem that I mentioned is now solved. Windows 10 now boots from the MBR, I think!

    There is a more serious problem with booting windows that I will start in a new thread.
      My Computer


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