Question Boot drive option missing in the BIOS ?

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Jun 13, 2021
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I just finished a Z690 to a Z790 motherboard swap a few days ago, and for the most part everything went smoothly. However I noticed I don't have a boot option in the BIOS. Currently its not causing an issue as it's booting into Windows just fine, Windows has been activated to the new motherboard etc.. .

Will the missing boot drive option in the BIOS be an issue later down the line?
Is an easy solution removing my M.2s and SSDs and doing a Windows reinstall?
I sifted through a few reddit threads and they say an easy fix is a 20 min Windows bootable usb drive, but I'm just not sure how true that is.
 
Solution
currently only having the 970 evo installed prior to reading your post.
I can stop where im at and remove the 970, and swap it with the 990 pro it sounds like.
Depends on what you want to achieve.

Booting into windows currently requires two drives present:
860 Evo - containing EFI bootloader and
970 Evo - containing windows OS partition.

If you want to make 990 Pro bootable, then
1. remove 970 evo and install 990 Pro and
2. do clean install of windows.

If you want to make 970 Evo bootable, then
1. Connect 860 evo and 970 evo,
2. Boot into windows and
3. Create bootloader on 970 Evo.

Execute from elevated command prompt. Regular command prompt will give error on last step.
If you get any errors, then stop...
Let me select what I needed too, and boot right into windows :hearteyes: . I'll return in a few after I add in my other m.2's and attach my pc porn as the least I can do.

I can't thank you enough. if I learned any lessons from this... Just fresh install windows on an empty drive for a MB swap lol....
Always. And for the record, although I only glanced at it briefly, it looks like you have Windows installed on multiple drives, with multiple boot partitions one on each of those drives, which generally happens when you don't completely delete all the partitions on the old OS drive then disconnect ALL drives except the one you are installing Windows ON and the one you are installing Windows TO. Having multiple boot partitions of the same OS, without using some kind of third party boot loader, just tends to confuse the crap out of the system and cause a number of different potential problems. Good luck man.