Avast isn’t just free for a day or a month.It’s free forever, or however long you need it.Avast Free Antivirus comes with five standard scanning options based on depth and speed. Rapid scan will suffice in most cases – targeting removable media and the files you select, identifying security threats in usually less than a minute. A startup scan will launch automatically on boot up and is a useful, regular security check. The antivirus constantly updating their database of virus definitions, meaning your computer will be protected against the latest spyware, viruses and potentially hazardous websites. Avast’s large and active community quickly alerts the development team of new security threats which are swiftly countered and added to Avast’s significant database. The browser add-on further improves computer security with features like cookie and social tracking blocking.