Yes, install it. If a system has any contact with the internet, it should have AV protection. There are virii that come from infected web sites. Trojans in particular.
Hell, as a general rule of thumb, every computer should have AV running on it. Only exception I can think of is a SQL server dedicated box. That should be scanned daily, but probably doesn't need real time protection where files are constantly under observation. =============
Mens et Manus
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