Licenses are activated for a particular computer. To change computers, you must first deactivate the license on the computer that it is activated on and reactivate it on the computer you want to run it on.
TPC makes this very easy via the Support tab in the Program Settings dialog.
To run TPC on multiple computers, you must first install TPC on those computers. Use the installation download provided with your purchase and install it on any computer you think you may want to run it on.
Remember, you will be able to run it on only one of these computers at a time.
To switch between computers, you must Deactivate TPC on the last computer to run it, then Activate it on the computer you with to switch to.
On the computer that is currently running TPC
On the computer you want to switch to
If any of these steps above don't work, you can always manage your license on line at https://traverse-pc.com/edd/license-manager/
You will want to deactivate the license then repeat the steps above to run TPC on the computer you are switching to.