Problem:
“I entered my Negative Lab Pro serial key into the Lightroom plugin-manager. It appeared to be successful, but then when I try to use Negative Lab Pro, it is still in trial mode, and I see my remaining uses counting down.”
Solution:
First, make sure you have the most recent version of Negative Lab Pro.
Then, follow these steps to force Lightroom to keep your Negative Lab Pro registration.
- Exit Lightroom
-
Hold down Shift-Option (on Windows it’s Shift-Alt) as you double-click on your Lightroom app to re-open Lightroom. Keep holding them down and the dialog below will appear.
- Select "Reset Preferences"
- You will now need to add Negative Lab Pro back to the Plugin Manager, and reenter your serial number, but this time it should stick.
