Hi. My granddaughter went to computer school spent several thousand dollars for the training.When her computer goes down she brings it to this old dumb country boy to be brought back to life.Now I am scratching my head she said a virus got into her system.She build this computer in class. It has Aopen motherboard with 2600 AMD sempron processor.I have tried to download win xp again,but does not even try to. I have taken cmos battery out and left over night and no luck. I have put cleaned hard drive in and nothing.Right now it has a screen that has all the mother board information and processor information. 3/4th way down on screen it has "check sum error default loaded.Bottom of screen it has press 1 to continue press del to inter setup.I cannot do anything because my keyboard and mouse do nothing.Maybe I need to start from scratch and get drivers for motherboard and try to install,but I would have to download them on my good person computer.I sure don't want a virus on it.Is there any way to download win xp without keyboard and mouse being recognized If anyone can help my granddaughter and I would appreciate it. Thanks.