See this web page for screen shots http://jdcdemo.com/allocation.html
I cloned (with a StarTech disk duplicator) a 2TB disk on to a 4TB disk to gain space. When I put the disk back in the computer, it showed three partitions, one the original content and then two unallocated space partitions.
I went to the extend mode in Computer Management and extended, which combined one of the unallocated partitions into the original which left one unallocated partition. (view 1 on the the linked web page http://jdcdemo.com/allocation.html
When I attempted to repeat the extend process with the partition with the content, I got a dialog box with no option to extend (View 2 on the linked web page http://jdcdemo.com/allocation.html
When I attempted to delete the un-allocated partition, I got a dialog box with no options other than properties (View 3 on the linked web page http://jdcdemo.com/allocation.html
As a result, after buying a duplicator and a new disk, and cloning the old disk to the new disk, I am no better off. It appears that Windows 10 has removed all of my options. Is there a way to add this space to the original partition in Windows, or is there third party software that will do the job?
If not, what are my best options to take my original content and add it to the 4TB disk and be able to use all of the space?