Plz help,my laptop not working,freezing on blue screen

hello all,please i need help ,yesterday I closed my laptop normally, and it shut down with no problems,today morning I opened it and it freezes at the blue screen of windows,and is not going further, I tried f8,and did the all the options there for many times(repair,safe run..) nothing worked,mostly freezing on"classpmp.sys" . then I tried to do f10 to restore,and it didnt work also,it freezes on "recovery tools are being lunched ,please wait" please help,I dont have recovery disc,I dont have the original windows 7, my laptop is original and I have on the back of it some numbers(product key..)..I dont know what is for,but just to mention if that help
my laptp information are as follow:sony vaio vpccw,windows 7
please help
thanks