Why is my computer moving so slow ? (READ BELOW FOR DETAILS)?

first of all, i mostly use my computer just for 2 things,(mainly) and that is to get on windows Live/AIM and download music on limewire (all my songs i put in on CD)

anyways, when i use my computer, my MSN Live hardly responds and it freezes all tha time and makes my computer slow,

so i tried this,

i restarted my computer and closed AIM, Windows MSN Live and limewire then my computer is working normal,

omg i dont get it,

if i dont have any of my main programs on then my computer ''seems'' to work properly, but once i put them on it freezes on me and barely responds

oh yea and i also ran my antivirus ''AVG free edition'' and it did not scan no voruses whatsoever

can someone help me?

oh yea and what can i do with the MSN and lime wire part?

do you think thats what causing my computer to react slow ?

Why is my computer moving so slow ? (READ BELOW FOR DETAILS)?virus removal

Using a registry cleaner can clean up your computer and then make your computer faster,Why?the reason is that there may be some regsitry errors and remnant,corrupt files and temp files in your computer to cause ''computer slow''.

Everytime you install and uninstall software on your computer and surfing online you create junk in the computer registry.over time, the registry can grow to enormous proportions, especially if the various programs you've installed do not do a good job of deleting and/or updating it's Registry entries.You need to scan and clean your computer with registry cleaner to make it fast.Good Regisry Cleaner will improve your computer and Internet performance dramatically!