1. Start System Mechanic.

  2. Click Yes to accept on the User Account Control dialog window.

  3. When System Mechanic opens, from the main interface, click the question mark (?) at the upper-right and then click Activation Key.

  4.  Click on Change key.

  5. Enter your product activation key and email address in their respective fields.

  6. Click Activate Now. Your product will be activated.