used to have Norton on this PC when I first got it, my god that anti-virus is bloated to the point of no-return......
I've ran into a nice 'feature' of Norton Antivirus in the past -- my parents PC came with norton pre-installed. Worked OK-ish for some time, but they did switch to a real anti virus program after a while, and uninstalled norton. so far, so good... Except when they got an ethernet based router instead of a USB one at some point, and found that the PC could not get an IP address. Ever.
Turns out that the DHCP client service (which is necesary for the NIC to obtain an IP) could not be started. Norton had left itself as a dependency in the registry, even after the program has been uninstalled... Meaning the DHCP client service would automatically exit unless it saw Norton running on the computer.
Nice.
manually removed some remaining Norton registry bloat, and all was fine again. Why on earth would they leave crucial things like that behind?!