McAfee Internet Security Suite
No doubt McAfee is one of the best antivirus in paid category. And in free category, AVAST, AVG etc are best. However you can download full version of McAfee Internet Security Suite with this promotional campaign.
You will have to give your email address and a license will be sent your email and you can enjoy free McAfee for 3 months.
Norton Antivirus 2010 Updated Beta
The updated version of Symantec Norton Antivirus is available now to download for beta testing. It is now compatible with windows 7 as well.
This beta test version of Norton Antivirus 2010 is the fastest, most proactive protection against viruses, Trojans and worms we have ever offered. The 2010 version of Norton Antivirus offers superior performance, improved protection, and tools to help preserve the performance of your PC.
Lock files and Folders with Ashampoo Magical Security Full version
Ashampoo magical security is an all in solution to lock or hide Windows files and folders. It can lock programs ,movies ,music and other secret files and folders in Windows machines. They have some limitations since they falls in the freeware category .Ashampoo Magical security can generate self decrypting files. So encryption will be there even if the files are transferred to a new machine .Other features includes a DVD burner and file wiper . The original price of Ashampoo Magical security is 30 USD . But here you can get the full version serial of this product completely free through a promotional offer .