At our December 2012 OGS computer workshop, we discussed some free software that genealogists might be interested in.

Virus, spyware, and other malicious software protection:
Microsoft Security Essentials:
AVG AntiVirus FREE 2013:
Avira Free Antivirus 2013:
Backup and sharing important files:
Dropbox Online Backup (2 gb):
Microsoft SkyDrive (7 gb):
PDF viewing and creation:
Primo PDF:
Cute PDF Writer:
Foxit Reader:
*Adobe Reader 11:
*Thunderbird E-mail Client:
*Google Gmail:
Office Suite:
*LibreOffice (OpenOffice spinoff):
*KingSoft Free Office Suite:
*Google Documents:
Genealogy Software:
Rootsmagic Essentials:
Legacy Family Tree:
Image editors:
GNU Image Manipulation Program (GIMP):
*Picasa 3.9:
Miscellaneous utilities:
*Firefox Web Browser:
CCleaner: (Removes unused files from your system.)
File Hippo Update Checker:
*Google Earth 6:
*LastPass username and password organizer:
Note: These programs work with Windows XP, Vista, 7 or 8.
*Compatible with Mac computers.