About as badly as it works in any other machine.
If you take the hard drive out of the laptop and buy a converter to connect it via USB to a PC or another laptop, you could start with testing the disk for errors.
You'll need to press your Windows key and R together then at the prompt in the black form, type
chkdsk /r
then hit Enter.
It may take a while but if it finds any errors, the /r switch wll make it try to repair them. Back in the laptop, try it again.