start --> All Programs --> Accessories --> System Tools --> System Restore
选一个中招前的“check point”做系统复原。
不然的话,用Microsoft Windows Defender扫一下你的电脑试试。
http://www.microsoft.com/downloads/details.aspx?FamilyId=435BFCE7-DA2B-4A6A-AFA4-F7F14E605A0D&displaylang=en