So my Lenovo gaming laptop was originally set-up with 2 petitions, one with Linux, the other Windows 10. I mainly use Linux, however a couple of things I needed to do within a windows environment. I've been there for about a month, but now that I'm trying to restart/reboot I no longer have any options to pick an OS.
I haven't done anything to the bios or anything, however it only goes straight back to the Lenovo screen then into windows.
Can anyone assist in what to do so I can get back my options at start-up?
TIA 🙏
From my experience it tends to be dependent on what bootloader you are using. I've also heard Windows likes to delete GRUB (The most common Linux bootloader) when it updates. It's likely your files from your Linux OS are still there - just that your bootloader is misbehaving. You can try load up a live USB and access your files, but a more permanent solution would be to fix the bootloader.
This wiki page from Arch Linux should give you some insight into how the process works, and how you might be able to fix the problem:
https://wiki.archlinux.org/title/Dual_boot_with_Windows