No Firewall,,,
Your machine is probably full of spybots and pop up ads, and other junk will slow the machine down and crash it.
Download and use for free :
Ad aware 6
http://www.lavasoft.de/
Along with SpyBot Search and Destroy:
http://www.safer-networking.org
Take you 5 minutes to figure it out, absolutely free, and must have programs especially working in Adult with all the pop ups,
spy bots, virus's, dialers, hijackers.