Fix Malwarebytes' Rejected Valid Key After Upgrade To Latest Version

What to do when Malwarebytes' Antimalware program rejected your valid license key after upgrade or after install the latest version? The realtime protections cannot be run and you can't unlock the free version, but you did key in your valid paid key or otherwise.

The following solution originally from my forum friend Dr.B@zSH and he manage to solved this problem.

1. Disconnect your PC from internet
2. Uninstall Malwarebytes' program by using Windows default uninstaller, but it would be better if you using 3rd party software like Revo Uninstaller and make sure delete the Malwarebytes' folder in C:\Program Files\
3. Restart your PC
4. Reinstall Malwarebytes' program ,you can get the latest version from here
5. At the end of installations, remove the tick from "Update Malwarebytes' Anti-Malware" checkbox and only tick on "Launch Malwarebytes' Anti-Malware" checkbox.
6. After you click "Finish", Malwarebytes' will launch and you can register using your license key now and you can start "realtime protections" mode after that
7. Restart your PC, reconnect to internet and update your MBAM program.

That's it, I hope this will help ...