Hi Igsey,
I had a similar problem with my laptop (although I didn't drop mine!)
To get up and running again, re-install Windows, on the laptop & don't format the machine. This will install Win 7 alongside the previous installation.
Once you are up and running again, your old installation will be found in the C: drive, under the folder named Windows Old. You can then copy any files that you need from the old installation & once you are complete, you can delete the old installation to free up any space that you need.
Let me know how it works out.
Cheers,
Chayne.