vista 64 recovery

booted with .iso recovery disk (windows vista 64) went to repair windows, i hit repair and restart and then it said "failed to stave startup options". it then asks me to load drivers... i dont know what to load or where to find it. i can see some of my computer files but dont know what to do. My computer failed to boot with an errror message saying..."windows failed to start. A recent hardare or software change might be the cause. To fis the problem....... please help