卸载Norton或McAfee。 安装一个轻量级的防病毒软件以取代原有的。 确保你只安装了一个防病毒程序。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
These two antivirus programs have been known to cause the most problems with browsing websites. If you have one of these antivirus programs installed, consider removing it and replacing it with a lightweight, unintrusive antivirus.  See Uninstall Norton Internet Security for instructions on completely removing Norton software, which can be tricky. See Uninstall McAfee Total Protection for a guide on removing McAfee Security Center, another difficult program to get rid of. After removing the old