I am trying to install a Linux distro in dual boot with an already installed Windows OS, in separated hard drives (each one in a different SSD). Anyway, I am having some troubles with it, which I am not able to fix. The problem comes with the booting system.
At this moment, I already installed in the new SSD drive the following distros: Elementary OS, Deepin OS, Solus OS, Ubuntu. Anyway, when I access the BIOS, it does not detect both drives. If I want to run Linux, I need to manually disconnect the SATA wire of the other SSD, so that only one SSD is connected. After that, if I reconnect the wire to the disconnected SSD, the PC will always boot Linux, so that if I want to run Windows, I need to disconnect the SSD containing Linux, and after that, Windows will be always launched. Both Linux and Windows detect the two SSD drives (Linux from terminal, Windows from disk management).
Moreover, when I installed Solus in the SSD, the BIOS was detecting both systems, so that I could launch any of the OS just by changing the boot priority from the BIOS. That just happened with Solus.