Performance comparison of 4 antivirus software
1. Final choice: Bitdefender antivirus (hereinafter referred to as Bitdefender)
2. Reason for selection: Bitdefender is a lightweight and efficient virus detection software, certified by ISCA (International Information Security Laboratory - International Certification Authority), other software does not.
3. Selection basis:
① Charge or not: avg and Bitdefender have free versions, totalAV and pcproduct are charged
② Operational efficiency: Bitdefender is better at detecting common malware
③ Impact on the system: According to the test data of the av-test.org website, Bitdefender has almost no impact on the system performance. avg sometimes slows down the computer's running speed, resulting in slow response to user commands
④ False positive rate, online and offline detection rate, online protection rate, as shown in Figure 1, Bitdefender is better than AVG
figure 1
Reference URL: https://fossbytes.com/best-free-antivirus-software/
https://bluegadgettooth.com/bitdefender-vs-avg/
https://www.tomsguide.com/us/bitdefender-antivirus-free,review-3523.html
http://www.toptenreviews.com/software/articles/bitdefender-vs.-avg-antivirus-software/