Hi , i've got a dual boot computer with win7 and home XP ( win7 the one i'm using now... ) . The problem is that the mouse and keyboard stopped working at login screen at bootup in XP, it's usb keyboard and mouse. This happened after i've got a virus warning the before shutdown and boot up. The computer worked after the warning. But the day after at bootup checkdisk started to repair files, but at the day before when i got the virus warning iv'e also got a powercut and bootup so that could be one reason it repaired files. Any help thanks.