Laptop wont log in

My laptop wont accept my password when i enter it the screen returns saying :- the user profile service service failed the login, user profile cannot be loaded. Need help please

Welcome to GeekPolice.net!

Please read article posed by Microsoft Co, at the link bellow :
http://windows.microsoft.com/en-us/windows7/Fix-a-corrupted-user-profile

Your error message :
http://support.microsoft.com/kb/947215