"Bob" offered to share with me his original download link and key of Page Plus X9 which is a far better more robust program than my old X7.

So, "Bob" if you see this please except my gratitude for your kindness. It was a huge help to me and I'll never forget you for it.

I'm so grateful to Alfred as well for creating this forum for us. Where would I be without you?

How did you "move" it? I think you will have to install it on that drive.

I moved it with this method:

Move programs to a different drive
1- Create a restore point
2- command:     robocopy "C:\Program Files\paint.net" "S:\paint.net" /sec /move /e
3- mklink "C:\Program Files\paint.net" "S:\paint.net" /j

Moving from: OS    Drive (C)

Move to: SSD    Drive (S)

Do you think if I just moved it back to the original drive it would fix the problem?

How did you "move" it? I think you will have to install it on that drive.

Agreed. A ‘PK’ error code suggests that the installed files have simply been moved from one location to another, which would leave the relevant registry entries pointing to the wrong places.

I do have the licence key for this product but can't open the program.
Can anyone assist?