AdBlocker Ultimate for Windows is a shareware software, which comes with a 14-day free trial. After the trial period expires, you need to purchase a license in order to continue using our software. Here are the steps for activating AdBlocker Ultimate for Windows:

1. Open AdBlocker Ultimate for Windows and click on Activate License:

2. Paste your 15-character license key and click Activate.

NOTE: You can find your license key in your mailbox. Please do not forget to check your Spam folder as well.

You can also activate AdBlocker Ultimate for Windows by using your account credentials:

3. Voila! Your AdBlocker Ultimate for Windows is now successfully activated.