msn問題

大家幫下我啦~~
係咁既...有一日我表妹黎我屋企到玩..玩我部腦...
佢係到整我個msn視窗,整到佢鬼咁細...到我想on都唔得...
我試過重生下載過msn...但係個視窗都係找唔到呀...
點算呀...我部腦係咪永遠都開唔到msn嫁啦~~
幫幫手啦!!!