No Windows in boot menu after installing Linux Mint 18.3

Last days I needed to install Linux on a computer having pre-installed Windows. I wasn’t installing Linux next to Windows for many years and the previous time it was a plain PC with BIOS and Windows XP and all went well.

But this time… this time it was a laptop (Lenovo ThinkPad L470) with UEFI (What it’s all about UEFI vs BIOS?) and Windows 10. And this time after installing Linux Mint 18.3 I was surprised to notice that Grub menu is missing Windows entry! And BIOS (UEFI?) option to boot Windows Boot Loader didn’t work. Apparently I was left with no way to boot Windows 10 again.

Solution

In my case it was enough to boot the installed Linux, open a terminal and execute this command:

sudo update-grub

After this, on the next start/reboot of the computer, the Grub menu contained the entry “Windows 10” and Windows was booting correctly when selected. Voila!

About krzysztoftomaszewski

I've got M.Sc. in software engineering. I graduated in 2005 at Institute of Computer Science, Warsaw University of Technology, Faculty of Electronics and Information Technology. I'm working on computer software design and engineering continuously since 2004.
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