do you get a lot of rogue antivirus software that hijack your computer ?

i have an xp, i get a lot of fake antivirus software that tries to hijack my computer, I have had the following in the past two years (it was fine till july 2008): Ultimate Antivirus 2009 , System Security 2009( very bad, i couldnt open any applications , it also placed a strange warning message on my background) , this one that i dont remember the name of, Home Antivirus 2009, this thing called braviax, Windows Antivirus Pro, and something that keeps redirecting google chrome to spam sites (i dont know if it is a virus), MS Antivirus, Sysguard, some other rogue antivirus software that i forgot the name of some spyware thing with a strange name , i have had many of my files corrupted and i cant open some basic xp files like program access and defaults, most of the things in the control panel, etc.

No, because I actually know how to care for and use a computer safely.

Unlike you.