What "suite" are you talking about? This is a volunteer, peer-support forum
for the database software Microsoft Access. Neither Access, nor Microsoft
Office, includes and antivirus program. Microsoft doesn't sell any antivirus
programs to my knowledge; check out
//www.microsoft.com/windows/antivirus-partners for their recommendations, or
consult a good software vendor. Do be aware that many of the free antivirus
programs you'll see on the web are in fact virus installers or programs which
pave the way for viruses to be installed.
While Microsoft no longer sells an antivirus program, as Windows Live
OneCare was discontinued last year, Microsoft does make available a basic,
free anti-malware called Microsoft Security Essentials for home use. See: http://www.microsoft.com/Security_Essentials/ .