Symantec
Symantec Antivirus software is provided free of charge to all Suffolk university faculty, staff and students.
AVG
Download a trusted, free, antivirus and antispyware security program for Windows 7, Vista and Windows XP.
Malwarebytes
Malwarebytes is a free anti-malware prevention, detection, and removal application.\
Spybot - Search and Destroy
Spybot is a free, reputable antispyware program compatible with Windows Vista and XP.