HP 250 G5 laptop

Last week I bought two HP 250 G5 laptops as a gift for a couple of family members, then proceeded to install Linux Mint 18 Cinnamon alongside Windows 10 on each. Those HP models are not top of the line, but with Intel Core i3 processors and 8 GB of RAM, they are not shabby computing machines.

To accomplish the objective of dual-booting Linux Mint 18 Cinnamon and Windows 10 on the machines, I had to first disable Secure Boot (or more accurately, Restricted Boot). This article details the steps involved in that simple operation.

To disable Secure Boot, you first need to access the UEFI (BIOS) setup utility. On an HP 250 G5 laptop, that’s easier if you first bring up the boot menu by pressing the ESC key (several times) as the unit boots up. The entries on that menu and the F-keys to press to access each, are:

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F1 System Information

F2 System Diagnostics

F9 Boot Device Options

F10 Bios Setup

F11 System Recovery

So when at the boot menu, the relevant entry is F10 Bios Setup, which means you need to press the F10 key to access the UEFI setup utility. Note that when at the computer’s boot menu, you don’t have to press the Fn key before pressing any of the function keys.

At the UEFI setup screen, use the right-arrow key to navigate to System Configuration, then use the down-arrow key to navigate to Boot Options. Press ENTER/Return when Boot Options is selected. Scroll down to Secure Boot (it’s under the UEFI Boot Options). By default, Secure Boot is enabled, so press F5 to disable it. Follow that by pressing the F10 key, then Yes to the prompt to save and exit.

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As the system reboots, you’ll be presented with a screen that contains a 4-digit number that you need to input into the prompt for the change you made to the Secure Boot settings to be accepted. With Secure Boot disabled, you’ll be able to install 3rd-party software and drivers that cannot be verified if Secure Boot was enabled.

HP 250 G5 laptop

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3 Responses

  1. If you have Windows installed and did a dual boot with Linux, use diskpart to clean the efi folder.
    Right click on the Windows logo (lower left corner) and open the Power shell (admin).
    diskpart
    list disk
    sel disk 0 (zero) #If you have more than one hard drive the number may be different.
    list vol
    sel vol 3 # look for the system fat32 and choose the correct volume number
    assign letter=s
    exit
    cd s:\efi
    dir
    rmdir manjaro #if more than one entry you have to do one at a time. Do not use the tab function, won’t work.
    Now lets go back and remove the letter s.
    cd c:\windows\system32
    diskpart
    sel disk 0
    sel vol 3 #or what ever number you used
    remove letter=s
    exit
    exit

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