BIOS doesn't recognize Windows installation.
BIOS doesn't recognize Windows installation.
Hello, your PC migration to an ITX form factor and the addition of upgraded components seems completed. You installed a SATA SSD running Windows and transferred it along with new M.2 drives. For dual booting, you began by setting up Linux on one of the M.2s. Later, you noticed the previous SATA drive appears in BIOS and disk tools but isn’t listed as a boot option. When you created a Windows installer drive, it worked but still launched Linux instead of booting Windows. The Linux installation now shows up in partition utilities yet remains absent from the boot menu. This behavior might relate to your initial setup—starting with Linux could have simplified things. GRUB configuration might be needed if you want Windows to appear during boot. You haven’t tried dual boot before, so consider exploring that path. Let me know if you need further guidance!