Testdisk can be run interactively, and can test every sector of the disk.
Simply issuing the command as "testdisk" with no arguments will start the interactive mode, then you can select the device to test, etc.

I don't know what you have done so far, nor what results you have seen, but I thought you said testdisk was running. At least that was your statement in post 4.

I would recommend you start it in interactive mode. By default it creates a log, and you can let it run overnight, or until it finishes, then you will have the log to look at and hopefully get good info about the partitions.

attached is deep testdisk can results. see screenshot

This disk is inaccessible by both windows and Linux. I was able to get help to get the data from it. All of it was recovered without issue.

I would like to get this disk to be seen again. It won't mount I believe would be the accurate term.

Can you help ?

If you have successfully recovered your data from the drive and simply want to use it again, the first step would be to use GParted since you are familiar with it and create a partition table by clicking the Device tab and selecting the type partition table then create partitions of the type and size you want. The link below is to the GParted online manual which explains everything in detail.

https://gparted.org/display-doc.php%...%3Dhelp-manual

If I am understanding the gparted manual this is a destructive process ?

I want this disk back in working order with the data intact. I know the data is there as it has been recovered and saved elsewhere.

Do I enter the information from that screenshot as a new partition table ? If so would that rescue the disk as is ?

If the data was recovered as you said above and is stored someplace else then go ahead and use gparted to create the new partition. If it was only one partition then the new partition should be aligned as the original was and the format may give you back the data since it does not overwrite everything. Even if the data is not still accessible the recovered data can be restored.

There will be a difference if it was originally ntfs and you switch it to ext4 or vice versa, but as long as the new partition is done in the same format as the original you should be OK.

One thing to consider is that windows cannot use a drive that is ext4 so if you used it on windows previously then it had to be ntfs. That means you should use the windows disk manager to configure the unallocated space and you should be good to go. If you did not use it in windows then it likely was ext4 and should be partitioned in linux.

There is never a guarantee the data will be there when you are recovering a partition, but it usually is.

Testdisk can also be used to recover data, but will not necessarily give you back the original file names.