Take the hard drive out of the dead laptop. Now pending the hard drive is fine but windows is fubar, get yourself a USB to ide/sata converter. This will let you transfer the laptop files to your gateway pc using the adapter.
If the laptop drive is a sata hard drive, you could also hook it up to your gateway pc pending it has an extra sata port.
Note. this is under the mentality that the hard drive mechanics are 100% fine. Just windows is toast.