macrium....unable to drag drop partitions to target drive

Don't see if you clicked clone or image. Clone would go to an empty drive. Make sure you understand the difference between cloning and imaging. Here is a Macrium Knowledge Base article on cloning, step-by-step: https://knowledgebase.macrium.com/di...Cloning+a+disk See Step 4, in particular.

Use check boxes, there's no drag and drop in MR.

There's some confusion about cloning and copying:
On the first screen, select backup tab, click on "Clone this disk" then select the Destination Disk
On second screen. If you drag and drop the partition(s) from the Source disk to Destination disk, you are copying the partition(s)
On third screen, If you check/uncheck on the partition(s), you are cloning the partition(s)



Copying using drag and drop will put the partition(s) next to each other


Cloning using check/uncheck on the partition(s) will put the partition(s) at the same location(s) as the source

CountMike said:

Use check boxes, there's no drag and drop in MR.

Sure there is. See @topgundcp reply.

As well as the Macrium knowledge base article linked above that.