It is a limited time offer from this anti virus vendour. You can get 6 months free of CA anti-virus plus anti-spyware. In this suit include Anti-Virus & Anti-Spyware,quick scan prior to install,,auto scanning of USB drives,one-click installation,fast scanning engine,real-time reports,,freeupdates,free phone support.The comprehensive solution offers integrated virus and spyware combating capabilities, guarding your PC from worms, Trojans, and other malware that can slow down or even damage your PC. And you can set your security settings in a snap with its new intuitive interface.
Double-check that your computer meets the system requirements.
Make sure that you’re logged in as an Administrator, or that you have Admin privileges.1
Uninstall any anti-spyware or anti-virus programs from another vendor on your computer and restart.
Close any programs still running on your computer.
Close any other active user sessions.
My impression is not on the positive side, I have used it about four years back and since then never used it. Though you can use it as a stop gap arrangement stil you buy a new antivirus subscription. You are also be warned of this if you have a thorough look at CA promotion offer webpage you will be able to read “Have your credit card handy to enroll in automatic renewal service and receive 6 months of CA Anti-Virus Plus FREE!” Decide yourself and you can avail this offer.n You can learn more of this antivirus suit from here.
Source: CA Antivirus