Issues finding and initializing m2 ssd and mechanical HD in BOIS and Windows 11.

[Wonderstate]

I have connected a new 4TB m.2 ssd into the second slot on the motherboard and aditionally inserted a mechanical HD and attached it's cables. I have done this so many times on other computers in the past but while in the HP BIOS there is really no options for finding or allocating these devices and I feel pretty frustrated and stupid now. It is like they do not exist so it is also not possible to boot from any of them. What the heck am I doing wrong? Do HP put limitations into these BIOS'es so it is not possible to add drives or what? 

[Bill_To]

Greetings @Wonderstate 

Welcome to the HP Forum.

A new NVME SSD would have unallocated space. It would not be possible to boot to this drive until you clone the existing OS from the current boot drive to the new SSD or install Windows on the new SSD.

A new platter HDD would also have unallocated space. It would not appear in File Explorer.

You would have to use Windows Disk Management to bring the new HDD online and then format the drive to use the drive as data drive. The NVME M.2 drive would need the same treatment using Disk Management if this drive will not be used as a bootable OS drive.

Did you check the BIOS "Storage Menu" to see if the MB detects the new drives?

Regards