avast! Free Antivirus is at an disadvantage feature-wise compared to the full security suites, but it does have very good detection and some zero-day prevention methods for all types of users. PUP-detection is also available, but disabled by default. However, I strongly recommend all avast! users to perform a custom install and tweak the AV settings to prevent unwanted software from being installed (see
this thread). Also be vigilant after installing avast! as it also offers either the Google Toolbar (for IE and FF) or Chrome (upon reboot). These could be potentially unwanted as they're not part of avast! software - just bundled software.
Comodo has become bloated and lost it's primary focus over the years. They bundle their out-dated browser software with whitelisted Ads extension, their non-free PC Tech Support, GeekBuddy which also installs to your PC. And last I remember, Silverlight was required for the full Virtual Kiosk experience (fancy iPad-like UI) .I've seen posts here stating that Comodo Antivirus is mediocre, and it's white-list aka Trusted Vendors List (TVL) is either incomplete or contains questionable vendors. Comodo contains a Behaviour Blocker based on TVL, Definitions and Cloud (correct?), and may auto-sandbox anything suspicious (requires user interaction) or not known by Comodo, this can cause false positives for legitimate software.
Qihoo 360 Internet Security has proven it's good detection rates, however, I remain sceptical about actually using their software due to it being very new over here (UK/US). I've read their Internet Security has been discontinued in favour for their Total Security which still contains some bugs. I haven't tested this software for very long, but it appears to offer effective AV protection in a simple package.
Comparing avast! Free and avast! Internet Security. I would recommend anyone avast! Free Antivirus. While their Suite does contain more features, I guarantee no average user will use those features (ie. Manual Sandbox) and will be at a loss. avast! Free with other third-party software may be more effective, rather than paying and still getting infected.
For any PC user running Windows 7 SP1 with Windows Update and UAC enabled on default:
- Between Comodo Internet Security, Qihoo 360 Internet Security and Avast! Internet Security = Qihoo 360 Internet Security
- Between Comodo Internet Security, Qihoo 360 Internet Security and Avast! Free Antivirus = Avast! Free Antivrius + Windows Firewall
For any PC user running Windows 8.x with Windows Updates, SmartScreen and UAC enabled on default:
- Between Comodo Internet Security, Qihoo 360 Internet Security and Avast! = Qihoo 360 Internet Security or Avast! Free Antivirus
However, I do suggest
trying (there's no harm in that) Windows Defender in Windows 8.x and Microsoft Security Essentials for Windows 7 SP1.
Additional software I can recommend, if you're likely to stumble across Adware or Malware.
- Unchecky.com
- Sandboxie.com
Bottom line: There is no best, detection rates from AV Testing sites or Youtube Reviews are negligible due to different users experiences with computers and Internet threats. Comments stating "Antivirus X is rubbish, crap or sucks" that is their personal opinion based on a test conducted by themselves or another party to
intentionally infect a Windows PC should not considered reliable.
Read more:
http://malwaretips.com/threads/protecting-your-pc-security-tips-advice.30452/ (Thread update in progress).