looks like you or a program has managed to courpt your sytem, the 2 fixes i suggested would normaly of fixed your system
can i have the make and model of your laptop and if possible a link to the manual.
it looks like your going to have to back up your important files and reinstall windows, this is not what i want to guide you through on here unless you have another means of getting back on the internet (another laptop in the house)
i have on your behalf loooked into this and i am at a loss to what has happened, do you have the means to back up? as if we do reinstall windows your going to loose everything unless we can do a non destructive reinstall using the inbuilt features of your laptop - its up to you how you wish to proceed, and id be gratefull if anyone else reading this can offer some help before we go down the reinstall route.