On the old PC:
Open Packing Partner>Tools>Options>System and click Data Folder, this will open an explorer window
In the explorer window, copy all files and folders except all copies of settings.dat to a shared folder or memory stick.
There are three copies of settings.dat, one in the root folder, one under _backup and one under _safe.
On the new PC
Download and install the trial version from here
Open Packing Partner>Tools>Options>System and click Data Folder
Close Packing Partner and copy and replace all files and folders from the shared folder.
Re-open Packing Partner and you should have all your layouts and settings imported.
Feature licenses are unique to each PC, so you will have to select your features.
Transfer the subscription
Once you are happy that everything is working correctly on the new PC, contact AiMCo with both serial numbers.
We can then transfer your subscription from the old to the new PC.
Once your subscription is transferred, you will not be able to use Packing Partner on the old PC.