Lightroom 6 (not cloud based). Transfer to a new computer

Dear community,

I already gave my request to the forum and received a first answer from

John Rellis. Thanks for this. So following I have studied lots of

information given by the LightroomQueen. But I am still unable to solve

my problem.

Down here I outline in detail what happens, and I hope anyone can help

me. *I would appreciate a simply formulated instruction for doing step

by step.*

I worked some years with LR6 (from DVD) on my old PC (under WIN7). Now I

changed over to a new machine (under WIN10), and I installed the same

bare LR6 from the DVD by using the same key. The first surprise came up

after registering at Adobe Creative Cloud: The presets became much more

versatile, e. g. de-haze is included now... So far, so good. By the way,

I want to stay out of the Cloud Version (CC?) - only on my own desktop PC.

Using this new installed LR6 I have imported some RAW pictures (new ones

from India) and started to edit/develop them. Even that worked fine. And

I found the file(s) as given in this screenshot - all automatically created:

So I will continue all the next time. There is no need for changes.

But now I come to my problem:  On my old PC I have a huge amount of

pictures edited/developed from RAW via DNG and than exported as JPG -

the last ones into separate files on an external HDD. But on the PC

itself the LR6 created (and filled in) the following structure which I

stored on an USB stick (4,5 GB) for occasional use with the new PC:

It is my wish to get the *opportunity *to access to those old pictures

via LR6 if there would be a need for this any time. They should not be

stored all the time on the new PC (and fill volumes). *How can I manage

this?*

I already opened the import menu of LR6 and have chosen the USB source -

but no picture was found:

By the way, the trial to open the file Lightroom Catalogue directly from

the USB finished with the following statement:

In addition, a confusion came up because of the hint for catalogues

named as Adobe Lightroom Classic CC (remember, I do not want CC):

In case I have been on a totally wrong way with my new installation - I

could install LR6 completely new...

Now I hope for illuminative help - step-by-step instructions, please.

Kindest regards, Klaus-Rainer Schulze