SSD working properly, not showing up in boot order in BIOS

Hi BornToLose129

Thanks for reporting the issue here.

We understand how difficult this is. However, I will try my best to solve the problem, can you tell us have you encountered this problem before?

You have encountered the problem of "After upgrading the SSD, under the Windows 11 system, the BIOS does not display the boot sequence of the SSD". If my understanding is wrong, you are welcome to reply and correct me at any time.

At the same time, we recommend that you follow the method mentioned below and check if it solves the problem.

Step 1- Change the BIOS settings.

As mentioned earlier, you can safely boot the system, restart the system and enter the BIOS settings.

1- Expand "System Configuration" and click "SATA Operation".

2- Change the SATA operation mode from IDE or RAID to AHCI.

3- Save changes or apply and exit the installer.

4- Restart again, Windows will automatically start the AHCI driver.

Step 2- First remove the SSD, reinsert the HDD, and then insert the SSD. Then follow the above steps to log in to the BIOS settings or UEFI to set the SSD as priority boot.

Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.

If you are going to modify BIOS Settings, please back up all your personal files first to ensure you do not lose data.

We are working hard to troubleshoot this problem, because recently many users have encountered the BIOS not detecting the SSD after upgrading to Windows 11. This may be a bug caused by the system upgrade. If it is fixed, we will actively push new upgrade notifications.

Feel free to post back if you need further assistance.

Chandy | Microsoft Community Support Specialist

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* Kindly Mark and Vote this answer if it helps as it will be beneficial to more community members reading here.

I'm currently still on Windows 10, as I performed a roll-back by wiping my SSD and using a third-party data migration tool to move an older version of Windows 10 to the SSD.

As of right now, Windows UEFI reads my storage and states my drive is healthy, will show up as the main boot drive on BIOS settings, and Windows will launch correctly so as long as my HDD is disabled or unmounted. However, once I enable the HDD, the system forcibly launches from the HDD. I go into BIOS to change boot order, and the SSD is not listed in the available drives to boot. From there, if I exit without changing or saving any settings in BIOS, the system then somehow automatically jumps to the SSD as intended.

In summary, it appears as though my computer will not boot from my SSD unless I unmount/disable the factory HDD, or if I launch either the BIOS or UEFI and exit without changing anything.

Hi BornToLose129

Is my answer helpful to you? If you need more in-depth support, please feel free to reply

Hi BornToLose129

Thank you for getting back to us. It is a pity that the previous method does not seem to work, but according to our research, it may be because there are too many partitions in the HDD hard disk,If the boot partition set in the HDD is not the same, for example, the C disk is used as the boot disk, and the D disk is used as the boot disk for a while, then the two partitions that have the boot record are very likely to conflict ,which causes Windows boot manage to record the boot records of the multiple disks during startup. All of them are added to the boot process, and the way we can do now is to format the partitions on the hard disk on the computer inserted into the HDD hard disk, and merge the hard disk partitions.

First, Click win key + R >> enter diskpart in Run

Second,Please operate in the order of the following codes

 C:\>diskpart 

DISKPART> list disk 

DISKPART> Select disk 1 

DISKPART> clean 

Note:The hard disk list that appears is the SSD and HDD installed in the computer .

Disclaimer: Please back up all your important data before performing it.

In this way, the HDD will clear all partitions, and then re-enter the BIOS to find out whether the boot sequence of the SSD can be found

Let us know if it works.

Chandy | Microsoft Community Support Specialist

* Beware of scammers posting fake support numbers here.

* Kindly Mark and Vote this answer if it helps as it will be beneficial to more community members reading here.