Can you tell me what you do to your drives step by step? Than
OK...in relation to your original question of moving the OS from one drive to another:
1. Ideally, you need 3 drives - 1. Current primary, 2. new primary, 3. temp storage for 'stuff'
2. Back up all your critical data to the 3rd drive, temp storage. This is just in case things go wrong. And by 'backup, I don't mean Windows backup or any of that crap. A simple copy/paste to some other physical drive. Anything you can bear to lose, or is too difficult to replace. Pictures of the kids, for instance. I think this is where you got lost...
3. Once you have everything you need copied elsewhere (check this twice) unplug that drive.
4. Now we go into the actual moving of the OS and other stuff
5. Whatever software you use, Acronis, CloneZilla, DriveImageXML....choose the source (Drive 1), and the target (Drive 2). Do whatever it says
6. Power down
7. Unplug the Drive 1.
8. Plug Drive 2 (the new primary) into the same SATA port Drive 1 used to be in
9. Powerup, and go into the boot menu. Ensure that the new Drive 1 is listed as the first boot option
10. Check that everything works.
11. Report back here with a Thumbs Up.
Again...do not get hung up on the phrase "backup". All you need to do for that is to make a safe copy of your critical data on another drive that can't be screwed up.