Windows 10: Can't change BIOS order

So I'm having a dual boot system (Windows and Ubuntu) and since I disassembled my laptop some hours ago the laptop boots directly into Windows (ignoring the GRUB OS selection screen).

I'm having a Lenovo Laptop with Windows 10 (Insider Preview) and a Samsung EVO 840 SSD on which my both OSs are installed.

When booting into BIOS I can't change the order of booting (Windows is stuck at the 1st position).

Any idea on how to solve this?

:)

 

After Windows 10 PC reset, inaccessible boot device

Sorry to hear. So you can't even access the recovery or tools partitions. Can you get into the bios and try changing the boot order to your recovery USB?

 

Black screen with no cursor on ASUS laptop with Windows 10

Change boot order (if applicable) in computer bios. Then retry the DVD

How to Boot Your Computer From a Disc or USB Drive

 

You need to update the boot file location.

I use rEFInd not grub so (from Windows Administrator command prompt) I run this whenever Windows resets it which it does on occasion. Code: bcdedit /set {bootmgr} path \EFI\refind\refind_x64.efi[/quote] You probably want to do something like this (again from windows command prompt). Code: bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi[/quote] If you can't remember or don't know where you installed grub (or what the name is) then mount the ESP and have a look - your loader will be in the EFI directory somewhere.

 

It sounds as if you need to edit the Grub menu in order to offer you a choice of which OS to load. See the article at How to Configure the GRUB2 Boot Loaders Settings which gives a full explanation. If you are having difficulty in launching Ubuntu, then try holding Shift whilst booting the PC.

 

The OP is booting straight into Windows.

 

I mounted the EFI partition in "B" so I get this

B:\> bcdedit /set {bootmgr} path B:\EFI\ubuntu\grubx64.efi
The set command specified is not valid.
Run "bcdedit /?" for command line assistance.
The parameter is incorrect.

 

You don't need that B:

You are telling the firmware about what directory inside the ESF to use - it doesn't know anything about Windows Drive letters.

Just put this

bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi

This is assuming there is such a program in B:\EFI\ubuntu directory

 

PS B:\> bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi
The set command specified is not valid.
Run "bcdedit /?" for command line assistance.
The parameter is incorrect.

 

Sometimes powershell is not fully compatible with the command shell when it comes to bcdedit commands.

Type CMD to get to old command shell, and try again.

 

Exactly - doesn't work in powershell

 

You got grub back? Splendid.

 

Yup. Yup.

Thank you!

 

It seems the problem appears again after installing a new Windows Update.

 

I'm not sure exactly what resets it to the Windows loader but for sure I do have to reset it now and again. You could be right and it is updates/upgrades that does it but, I think, not always.

I have a MacBook and upgrading that OS also resets it to MacOS (and I lose my bootloader again). I suppose they both like their own OS to be in charge *Smile