Welcome to the forums first of all.
Hmm, So, something must be wrong with your Windows installation i'd say. By any chance does your laptop have a recovery by pressing a certain button on the keyboard to access a formatting tool to reset the computer and make a new Windows installation?
I'm afraid if it did though, you'd lose all the data on the laptop you had
I'm sure there is a way to back it up though, but I just can't think of any at the moment if you did have important data on it.
Its a very difficult situation. With a PC, it would be rather simple as you'd just fit a new hard drive in with Windows and copy everything over. With a Laptop, you don't really have that freedom.