Hi I have a Gateway Laptop running on Vista 32 bit and yesterday it just shut off while I was using it. When I turned it back on it only got to the Gateway please wait screen and stayed there. So I put in the operating disc and did the start up repair and well its been doing that for hours and I dont know if its actually doing anything. im not sure what I have to do, I recently backed up all my files so If i need to I can reformat it all but i dont even know how to do that.