Problem with starting up

Hello,
I have HP pavilion dv6700 laptop
I was working on my laptop and then i closed the screen quickly without closing it from the start menue
when i wanted to open the laptop 2 second after that i couldnt do so
a blue screen came telling me how i want to open the window. Normaly or by start up repair system i choosed the second one. Then it start repairing after 10 min it tells me that the repairing process was not seccessful.
then a black screen comes.
pleaseeeeeeee help me as i do distance education and i need my laptop.