Press the Log in or Activate button it can be found in the License section or on a separate screen a gift, an account will be created automatically. An account can also be created directly in an AdGuard. Now you can use all.
You can also use the ad blocker that is integrated in this version to block ads and trackers on websites and applications. You also don't have to deal with annoying ads or trackers that can slow down your PC or compromise your privacy. Please note that it is often not enough to just find out what your license key is.