Does virus protection slow down computer?.Which antivirus will not slow down my computer?.Do I need Norton if I have Windows Defender?.Does Windows security interfere with Norton?.Do I still need Norton with Windows 10?.How do I stop Norton from running in the background?.Why does Norton take up so much memory?.Which antivirus slows down computer the most?.Is Norton better than Windows Defender?.While Microsoft Defender provides a great real-time malware detection rate, it doesn’t match up to the Norton 360, which detected and blocked every threat thrown its way. Norton 360 takes the top spot as the better antivirus option against Microsoft Defender. Even if you’re upgrading to a similar Norton product, the upgrade could be corrupted by a third party anti-virus program. Symantec recommends uninstalling any non-Symantec anti-virus and firewall programs before installing any Norton product. Norton software doesn’t only conflict with itself.

… Some applications may use high memory while performing certain tasks, like trying to access the Internet, or display a page with lot of rich media content. Performance Monitoring feature of Norton closely monitors your computer and alerts you when there is a more than normal amount of CPU or memory usage occurring. but when it is plugged in being used it averages about 25 to 35 Mb of memory. The problem that I am seeing is that when she is on battery power the Norton 360 uses anywhere from 155 up to 175 Mb of memory in the task mngr. If you have only installed Norton, you should try disabling Windows Defender. In this case, you should disable or uninstall the other antivirus program. Norton security will slow down the system performance if any other antivirus program is installed on the computer system.

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