Bitdefender is an antivirus software suite developed by Romania-based software company Softwin. Bitdefender is designed to protect computers from viruses and spyware. Unlike the commercial version, the free tools only offer an on-demand virus scanning and doesn't provide real time scanning, and may therefore be less suitable for machines with a continuous connection to the internet.

“Bitdefender Antivirus Essential uses technologies Antivirus and antiphishing protection repeatedly rewarded. Free access to updates to the virus signature database throughout the life of your PC. A "discreet" protection: no configuration required, no warning message or interruptions in your use of the PC. A lightweight product that will not slow down your computer.”