If your license key does not validate or your installation code is blank, you may have accidentally disabled a specific type of encryption on your computer. Once encryption is turned back on, you will be able to validate your OnePager license key or obtain your installation code.
Here is the registry setting in question:
Set the "Enabled" to 0 (zero) as follows:
After making this registry change, restart your computer, and the encryption of your license key should work normally.
Last Updated: December 27, 2019