Whether you're not interested in renewing the software you already have, or don't have any current protection at all, this list gives a selection of the different kinds of free antivirus software available. Some software is always free, but others offer a subscription for improved service. Spyware and adware protection can also be offered, something that will also be explored in this guide. Take note, like previous guides of mine, this is not a ranking list; this just shows which types of software are available along with their assets and flaws.
Spyware Protection: Requires Paid Upgrade
Adware Protection: Requires Paid Upgrade
Features
- Protects and detects worms, viruses and Trojans
- Scans for rootkits
- Phishing protection
- Prevents expensive dialers
- Impressive scanning speed
- Updates daily
- Uses few resources (RAM and CPU)
Setbacks
- Limited customer support
- Excessive prompting to upgrade
- Does not scan incoming or outgoing mail; only scans files once saved to hard drive
Spyware Protection: Included
Adware Protection: Included
Features
- Protection against identity theft
- Protects search results
- Implements well with e-mail clients such as Outlook
Setbacks
- Bizarre interface
- Spyware detection is poor
- No technical support
- Limited updates
Spyware Protection: Included
Adware Protection: Included
Features
- Protection against rootkits
- Offers more protection than other free antivirus software
- Near 100% virus detection
- Good support
- Daily updates
- Incredible compatibility (Windows 95 to Vista, 32-bit or 64-bit)
Setbacks
- Menus are difficult to navigate
- Sluggish scan times
Spyware Protection: Included
Adware Protection: Included
Features
- Open source for users who enjoy that type of software
- Automatic updates
- High detection rate when scanning for spyware and viruses
- Integrates with Outlook to remove virus attachments instantly
- Always free
Setbacks
- Updates and software improvements require participation from users
- Doesn't scan incoming or outgoing mail
- Infected items won't quarantine
- Interface could be better
Spyware Protection: Included
Adware Protection: Included
Features
- Daily updates
- Instant scanning of every file you use
- Worm protection
- RAM scans
- E-mail scans
- Easy to navigate and use
- Always free
Setbacks
- Still in its beta stages; has bugs to work out
- Limited malware protection
- Heavy on resources; sometimes uses over 100MB of RAM