spyware problem

而家的情況:

電腦忽然彈出左"warning, spyware detected on yr pc"的window,跟住仲要變埋做wallpaper

然後就有個疑似真的,名叫"antivirus XP 08"的野出現左係電腦,佢會不停咁係右下角彈出小視窗話你中左幾多virus,但係如果你唔register同俾錢的話佢係唔會幫你remove個d spyware

跟住我就試過用我電腦本身有的antivirus去check下la,不過乜都check唔到, 咁我就用埋spyware doctor去check, 佢都check到好同埋幫我delete埋....不過"antivirus xp 08"就仲係係度不停煩住哂,佢仲有好多spyware仲未remove,而個d file係spyware doctor detect唔到的


我的問題係:

1)其實咁樣我部pc係咪已經叫中左毒?咁有乜辦法解救?

2)點樣可以delete到antirvirus xp 08?(我試係過控制台度delete,但係唔知點解好神奇咁delete唔到佢)

3)點樣先可以remove 哂所有spyware? 有無邊一隻免費而可靠的spyware remover可以介紹下載?