An expert opinion on Windows Vista could work here?

Hi i'm running vista home premium 1.49 gb of memory

I have avast, threatfire, spyware doctor installed on my internal HD a while ago, but eversince i booted from the very moment i installed those security apps, i can no longer access my laptop because it always freezes while processing startup items, it took 2 hours in rebooting in normal mode and still the laptop is frozen for some reasons. i thought i had a bunch of craps loading so i check msconfig in safe mode, but i only have yahoo messenger, skype and those security apps, now, i moved those security apps on my external HD, and wow i can now access my laptop, but it is relatively SLOW! very slow, is it really necessary to have those security apps on vista even if you're sacrificing your user satisfaction experience, and clogging your laptop's memory and eventually shorten it's life span? any recommendation? thanks.

An expert opinion on Windows Vista could work here?nortin

i would unstaill THREATFIRE becase i have no idea what that is XD and i use avast and Spybot S%26D and i experience no lag in my system (XP prof. 704mb RAM)

maybe just throw the other craps away and use wat i use?

hope this answered your question!

(please put as best answer XD)