You need mod BIOS to boot from NVME, that is why your attempts are failing, and you can’t clone previous OS from SSD to NVME without doing things in a certain way (must be converted to GPT initilized disk etc)
Here’s a few ways to clone if you wanted, but I do suggest a clean install
Installing Clean Win7x64 on M2.2280 PCIe Gen3x4 SSD A-DATA SX8200 Pro << My way, will work for Win7 or Win10 (if cloning Win10- start at step #4, skip #5)
[Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS (330)
[Guide] How to migrate Windows 7 64bit boot drive from MBR SATA to UEFI NVMe without data lose
Once you install NVME mod BIOS, if not cloning drive and doing clean OS install as suggested, you need to follow at steps at #4 exactly in the “This is what you should do” section of this guide
[Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS
Here, flash via Qflash (Suggested) or FLASHEFI
http://s000.tinyupload.com/index.php?fil…169931245446666