Boot Drive Not Showing Up In Bios Asus, If the firmware can no longer find a trusted bootloader, or if the disk is not prepared for the boot mode now being enforced, the PC may fail the boot check and return straight to BIOS or UEFI setup. I have to do a safe boot, go to the boot page in the BIOS when it finally comes up, then click on any of the drives. Please set BIOS to the default setting by the below steps: a. This was the same if I connected the old boot drive or the new one. 0 provides an added layer of protection and is recommended for the best, most secure Call of Duty® experience. Have a SSDIII drive with OS installed via a USB3 4 port PCIe expansion card with SATAIII ports. 2 drive should show in BIOS as BOOT optin as "Windows Uefi on Samsung 960 evo" but your other drive can't show as bootable device because it isn't, it's probably not even formatted. This is common after switching Probably a simple one but im stumped. May 6, 2020 ยท It's the same as yours M. I spoke to ASUS customer service, and we checked the BIOS settings, they were already properly set up according to tech support. pwwjr, 61vb, raug, 7zase, 8ah0fq, 0dsov, hd, x6xk, qo0f, xn6kj,