In no particular order with varying degrees of awesomeness, here is some of

Our Favorite Free Software

1. Avast! Free version
http://www.avast.com/free-antivirus-download
Windows
This version has new features and a great look, along with a boot-scan that strikes at malware.

2. Avira Free Antivirus 2012
http://www.avira.com/en/avira-free-antivirus
Windows
Lacking little from the premium version (save Web protection and live support), Avira’s free version also gets good scores from PCMag and independent labs for malware removal.

3. LibreOffice
http://www.libreoffice.org
Windows | Mac | Linux
Our reviewer calls LibreOffice “by far the best free office application suite” and says it should be the first choice for anyone that wants a free alternative to Microsoft Office. It’s another offshoot from OpenOffice.org, but it already has more features and an improved interface. It includes a word processor, spreadsheet, database, presentations, and apps for math and drawing.

4. TeamViewer
http://www.teamviewer.com/index.aspx
Windows | Mac | Mobile | Portable | Mobile
Still our Editors’ Choice for remote control, TeamViewer 7 offers a brain-dead simple setup and a remarkably fast screen redraw when controlling another desktop, whether from a PC or Android and iOS devices. For free, you get access to a single system, which is perfect for providing tech support to family and friends. Read more