As suspected.
You do NOT need to make a partition, or do a full clone.
An Image is what you want to do.
You just need sufficient free space on your HDD, and a 4GB or larger USB flash drive.
Thusly:
Assuming you have another drive with sufficient free space to hold the entirety of your current m.2 drive:
- Download and install Macrium Reflect
- Run that, and create a Rescue CD or USB (you'll use this later). "Other Tasks"
- In the Macrium client, create an Image to some other drive. External USB HDD, maybe. Select all partitions. This results in a file of xxxx.mrimage
- When done, power OFF.
- Swap the 2 drives
- Boot up from the Rescue USB you created earlier.
- Recover, and tell it where the Image is that you created in step 3, and which drive to apply it to...the new m.2
- Go, and wait until it finishes.
- That's all...this should work.