The HDD was already installed in the drive bay so I just attached a Sata data cable & Sata power cable to the SSD & laid it in the bottom of the drive bay. I initialized it as as MBR format rather than GPT but when it came time to clone the disk the software only offered the GPT format from the source drive & when I said OK it changed the Target SSD from MBR to GPT as it worked. At some point the computer told that the SSD had to be initialized so I gave the OK to do so.
Had to restart the computer to get full recognition. I attached the 1 TB Samsung 870 EVO Sata SSD. Moved the receiver to a location farther away & all was OK.) The hardest part has been installing an additional 8 Gb of Crucial ram (total 16) because of the tremendous amount of pressure that it took to fully seat the 2 sticks of ram. (Note: plugging in a 256 GB SansDisk Ultra USB next to the Logitech Unifying Receiver killed movement of the mouse cursor. The back up was sector by sector because the software detected a bad sector in one of the Unlettered partitions. I backed up the data which took about 1 hour & 20 minutes using a USB 3.0 drive and EaseUS Todo Back Up free software. I note that in looking at the 3 Unlettered partitions with 3 different partition managers 2 of them showed an unlettered 200 Mb partition to have 200 Mb of free space but one partition manager showed all of the space to be used so I decided to leave all 3 alone. There was only about 150 Gb total on the Source disk.
I used really, really easy to use Niubi Partition Manager Free to show volume J, reduce the size of C & then combine J, K & unallocated space so that I was left with Lettered volumes C & K plus 3 small Unlettered partitions that I don't know what they do. Original Poster: I received tips which led to a solution.