Upgrade to Tweak-8 for Windows 8

Registered users of Tweak-7 for Windows 7 can upgrade to Tweak-8 for a special 33% discount!

Enter your Tweak-7 serial number below, click 'Check serial' and get a special 33% discount on Tweak-8 for Windows 8. Registered users of Tweak-7 can access the required serial number after logging in here.

Please note that the upgrade discount is available only once per customer (but valid for multi licenses). That means that you can purchase more than one license for this 33% discount.


If you have lost your Tweak-7 serial number, click here to log in and find it.

  • Please note that only one code can be applied per cart, and that you need to apply the code before you finalize your order! We cannot apply a discount code to orders that have already been completed!