The application installs as a normal one and then it monitors the web addresses and pages visited and blocks bad pop ups, ads and everything that is used to track your browsing habit.
You can download it through the following website: https://adguard.com/en/welcome.html
If you already have it, then the software can be uninstalled using the following method: use Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
After that, try running AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.