Windows 10: I installed a new ssd m.2 and it will not boot when set as the 1st boot option .. plus in...

Installed a new ssd m.2 and it will not boot when as as boot 1 .. also has no option for windows boot managee in the bios under boot 1 .. what could the issue be

:)

 

M.2 SSD isn’t showing as boot option

Here’s the problem. Last night I installed the WD BLUE SN550 NVMe SSD and installed windows on it and I launched the computer, reinstalled things and everything was great. However, I am looking to remove my other SSD which was my windows previously, as it
is causing a lot of problems so I was trying to set the M.2 SSD as a boot option. It does not appear in the boot options menu for the UEFI Bios Utility. This is what I need help with.

New SSD:

WD Blue SN550 NVMe SSD

Motherboard:

Asus TUF Z390-PLUS GAMING ATX Motherboard.

 

Apparent conflict between M.2 Crucial SSD and Western Digital HDD in BIOS

Just purchased an M.2 Crucial P5 Plus 2 TB SSD. Installed into MB slot and restarted PC. Met with black screen that said something about connect a proper boot device and reboot. Rebooted to look at boot sequence in bios and noticed the new SSD is listed but my SATA Western Digital WD 1001 FALS HDD is not listed in the hardware. Only UEFI Hard Drive. Chooseing the UEFI hard drive as first boot did not work. Removed the SDD drive and rebooted. This time my WD HDD showed up as a possible boot device. Set that as 1st boot, restarted and Windows loaded just as before. Every time I install the SSD, I lose the option of setting my existing WD HDD as a boot device.

 

Unable to boot from old ssd after installing M.2

Hello
i just got a brand new Samsung 960 Evo to my system

after installing the m.2
other hdd's and ssd's are not shown in the boot menu
i want to boot from old ssd to migrate the os to the new m.2

so that's what happend

on Gigabyte z170x-Gaming6