Speed
Scanning of files went smoothly. Load on CPU was reasonable.

Size
Minimum 256MB of RAM & 70MB of hard disk space.

CA Antivirus has plenty of help options, including documentation, email and phone support.

CA Anti virus provides protection against damage caused by computer viruses. It also has a proactive protection by monitoring critical program functions and settings, and reminding the user to keep the security at an optimal level. It protects 3 PCs under a single license. It has advanced Heuristic Scanning detection, which can detect new threats even before virus protection updates are created.

Installation 
We didn't have any problems during installation. Not a big deal, just for your information, CA Antivirus will not allow you to continue the process of installation, until you scroll down the EULA.

Uninstallation 
Uninstallation is easy with just a click of button.

Dialy Use
It has a easy-to-navigate interface, which notifies us about any changes or vulnerabilities in our system.

Updates
Updates were installed with a click of a button. It has automatic update option. Which can also do the job.

Updates
The built-in update manager regularly checks for any available updates. It depends on how you set this feature. Either you can schedule this or you can do a manual update. Most of the updates come into action instantly, while some asks us to restart the computer.