Doesn't boot up - Hard drive failed?

I've been having troubles with the laptop for a couple months now in that it will randomly freeze, or it won't start up, up till now a few restarts and a startup repair has solved it, but a few days ago it wouldn't start so i went through the start up repair system, i left the repair window running for 3 days straight and nothing changed no problems found nothing. so i quit it restarted it and went into the boot menu, and started a system test (i forget exactly what it is called) but it tested everything on the computer and it only failed the memory test for the hard drive, not sure if this means the hard drive is scrap?

Any help would be great, if the hard drive has failed can any files be restored from it?

I would reboot it from the disk, but there are some files on there that i need...