My computer boots in to BIOS, boot order shows "disabled", drives show in Boot Overwrite.

Astralv

Distinguished
Hey there

I have dual boot system with 3 drives. One drive is Windows, one drive is "Other OS" and storage drive formatted for Windows. It used to always boot in to Windows, I had to enter BIOS to boot from another drive. But at some point it decided to boot in to "Other OS." When I look at Boot Priority, it used to only show the "Other OS" drive and Storage drive, Windows drive was not on the list. But all 3 were showing up in Boot Overwrite. So I set it to Boot Overwrite Windows drive. So it would boot, but I have to manually go there to boot computer every time. Now Boot Priority has "Disabled" option on it. What do I do? Thank you.

[OS = Windows 10]