Sorry, but I've fixed a few computers that didn't have antivirus, spyware blocker or firewall. Besides BSoD's and key processes being hijacked, I can definitely say it does help keep the performance up.
It may slow down your PC initially, but it keeps the performance for life. You might have great performance after a fresh install, however it doesn't last for long.
Personally, I'd rather have a working PC than have to deal with a BSoD. I doubt I'd get many virus' and such as I don't download those kinds of files. However if you have a teenager in your family either whip them every time they try to touch a computer, but the way that's less likely to end in your incarceration is installing virus software.
The choice is prevent or protect, and I'm guessing many people here could prevent through their browsing behavior, I doubt the same could be said for any 12-16 year olds.
It may slow down your PC initially, but it keeps the performance for life. You might have great performance after a fresh install, however it doesn't last for long.
Personally, I'd rather have a working PC than have to deal with a BSoD. I doubt I'd get many virus' and such as I don't download those kinds of files. However if you have a teenager in your family either whip them every time they try to touch a computer, but the way that's less likely to end in your incarceration is installing virus software.
The choice is prevent or protect, and I'm guessing many people here could prevent through their browsing behavior, I doubt the same could be said for any 12-16 year olds.