I have a laptop with Vista Home Premium 32-bit.  I was using chkdisk and now it will not boot anymore.  It only goes so far as to have a black screen and a mouse cursor.  If I leave it like that it will eventually reboot and then comes back to the black screen with the mouse cursor.  I was wondering if it is possible to repair my system without reinstalling the entire operating system.  I don't have a CD or DVD, just a recovery partition.