Of course, if you never install software on your computer...
I guarantee, 100%, that you will never have a problem!
Yeah that's the ticket.
Actually that's kind of what I do with my work desktop machine. Get it all tweaked and do my best to never install anything again. Anything I need for a one shot use I install on a test machine, I don't care what spyware or anything else lands on a test machine it'll be scrubbed in under a week anyway.