Booting up problems

I'm having a problem every time I start up my pc. Before windows loads up I get the option to start up windows normally or activate tools for fixing the system while start up (My pc is in Polish so this is the best translation I could give.) If I chose to start it up normally I have the windows loading screen with the icon and it loads for ever. If I chose the second option I get a loading bar followed up by a black screen and once again nothing happens. I'm hoping there's someone who knows a possible solution. Thanks