Avast Free Antivirus

The bottom line: After the last version's radical new interface that brought this security stalwart into a visual comparison with its competitors, Avast looks to the future with version 6's edgy improvements.

TeamViewer

TeamViewer is an excellent screen-sharing and file-transfer app that can be used to facilitate business collaborations, remotely access a second computer, or help distraught relatives diagnose and cure computer problems. Along with being free for noncorporate use