In all honesty I've not done an actual comparison of each althought there are many, many comparisons done every year with the results available for all to read.
In my case, I have several machine. On some I run Avast. Other's I run Defender or MSE. I have also run pretty much everything available to see how it works for me. That's how I landed on the short list of Defender/MSE and Avast. That doesn't mean that others arn't useful or good, just in my experience...etc. etc. etc.
Don't forget A/V is a small, but very important part of the total Security picture that you should be following. This is my Prevention Speech that I post to users after I've helped them clean their machine. Have a look Also, look at some of the Completed Topics in the Malware Removal Forum. Most will contain either a Prevention Speech or at least some suggestions. Gleen the best and most useful for your particular situation.
Cryptolocker is a new ransomware that heavily encrypts your important files. At the moment there are no programs that can decrypt these files. You can read how to protect against it here.
An ounce of prevention is better than a pound of cure, so, I have listed some tips for you to stay safe on the internet in the future.
WARNING!: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java. Have a look at this article.
I would recommend that you completely uninstall Java unless you need it to run an important software. In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)
If you still want to keep Java
- Click the Start button
- Click Control Panel
- Double Click Java - Looks like a coffee cup. You may have to switch to Classical View on the upper left of the Control Panel to see it.
- Click the Update tab
- Click Update Now
- Allow any updates to be downloaded and installed
- Warning!: Make sure to uncheck Optional offer box when downloading Java or you will install an adware on your computer.
Adobe products have to always be updated, because they also are being used to infect your computer.
- If you want to update Adobe Flash Player, visit this site.
- If you want to update Adobe Reader, visit this site.
- Warning!: Make sure to uncheck Optional offer box when downloading Adobe products or you will install an adware on your computer.
Turning on Automatic Updates is a crucial security measure. Keeping them out-of-date is like begging to get your system infected.
- Click Start > Control Panel > System and Security > Windows Update
- Under Windows Update click Turn automatic updating on or off
- Make sure that your settings are set so that you will receive updates automatically and click OK.
FileHippo is one of programs that can check for out-of-date programs on your computer. You can get it here
Recommendations for security programs
- Malwarebytes' Anti-Malware is a new and powerful anti-malware tool. It is totally free but for real-time protection you will have to pay a small one-time fee.
- WinPatrol as a robust security monitor, will alert you to hijackings, malware attacks and critical changes made to your computer without your permission. WinPatrol takes a snapshot of your critical system resources and alerts you to any changes that may occur without your knowledge.
For some good tips about how to prevent infection in the future, visit this site.