I recently installed Linux Mint on my main PC because Windows 10 is reaching end-of-life. I initially set up Windows 11 on its own drive, which worked perfectly. However, after installing Linux Mint on a separate drive, I tried to boot back into Windows and it defaults straight to Mint. I noticed that the Windows drive doesn't even show up in the BIOS. I'm worried that I might have messed up the Windows installation during the Mint install. Is it likely that I need to reinstall Windows? I left all my drives plugged in during the W11 installation, and I've had previous issues where Windows placed partitions in the wrong spots because of that.
4 Answers
Did you happen to enable os-prober during your Mint install? It’s essential for detecting other operating systems.
First, boot into Linux Mint and check the partitions on your drives. Your Windows drive should have a few partitions: at least one EFI partition and another for Windows, plus possibly recovery partitions. If you can confirm these partitions are there, check the EFI partition to see if the Windows bootloader is present.
Post the results of the command `lsblk -Ao name,label,fstype,parttypename,pttype`. That might help in diagnosing the issue. At the very least, it will give us a clearer picture of your drives.
You might want to check the migration page in the Linux4Noobs wiki for tips on dual-booting. Just a heads up, when working with root, be cautious with what you install and always ensure to verify checksums for downloaded ISOs!
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