Hello, I can't boot up windows 7 it gives me a error message and says insert my installation disk. I dont have recovery partition enabled and it wont even boot in any safe mode. I also dont have any disk for it because it would not let me create one. I want to know if I can reformat the hard drive with nothing but windows on it, or if I can just recover to a time when it would work. BTW Last Known Good config doesnt work either and its an HP Pavillion G7 4 gb memory, 19 mhz processor