hi, i recently installed win-xp on my machine. after installation (a few days later). i keep getting these strange pop ups that looks like coming from windoes: "your system is infected. visit registryalert.com" or regfix.com or regfixer.com" or pccleaner.com. the last message says that windows will shut down in 30 seconds, and shuts my system down. is there anyway i can get rid of this? is this coming from windows? or ms-new anti spy? any help would be appreciated.