The software licence is written for use on a single PC with a single email address.
If you have reinstalled your Operating System and get the error "Incorrect email address or license code! (Error:8941410)" during reinstallation then please click the button on the error message to contact WinX.
Please mention that this order is from Fanatical.com and they will be able to unlock your licence to work with your reinstalled Windows OS.
Alternatively please email firstname.lastname@example.org and provide details of the error, your Licence code and your email address. Please mention that the order is from Fanatical.com and list your email address and Serial number.