I've got a new computer arriving tomorrow and it comes with McAfee installed with the free 30 day offer. I have Xfinity internet and currently use the free Norton anivirus software. To install the Norton on the new computer I see that I need to remove the McAfee first (I was also told to completely uninstall the McAfee software by the computer manufacturer when purchasing). My question is regarding downloading something like Norton from the internet with no antivirus software actively protecting my connection. Will Norton install with just Windows 10 Defender active or do all antivirus softwares have to be shut off? Is there another method of installing Norton while still being protected from a virus attack?