My note book starts but then shows blank screen and no button functions

Put a bootable CD into the drive and change the boot order in setup to try to boot from the CD first. If it boots, then you know the problem is with the hard drive or with the operating system on the hard drive. Take the hard drive out and slave it to a working computer. Make sure it is the same operating system. You can get an adapter for the cable connection from your local computer store for about $15.00. If you can read the drive on the other computer, then you know the problem is the operating system. Burn all your files to CD or DVD while you have it slaved to the other computer then put the hard drive back into your laptop and then run your recovery discs. After you reinstall the operating system you can reload all your files. If you cannot read the drive when you have it slaved to the other computer, then the drive is toast and needs to be replaced. I hope you have backed up your files regularly.