Failed to set data fot ‘Data’ error

Your end user gets this error when entering an activation key:

Error setting data in registry - Failed to set data for 'Data'

Reason: there is a conflict with another software which prevents the secure application to write data to registry. It is generally a security software such as an antivirus program.

Workaround: you can use the advanced option Use another registry key for storing activation data as shown below.