My 5 year old Macbook that hs NEVER had any issues suddenly made a humming sound while using it and froze. I eventually had to hold down the power button to shut it down. When I restarted it, that humming noise continued as it was trying to boot up, the noise then shorted out and died. My Mac began flashing the grey folder icon with the question mark and won't do anything else. I have read a past forum and it was concluded that it was a dead hard drive. My concern is that i will not be able to retrieve all the info. On that hard drive (5 long years worth) and that because my MacBook is so old that I won't be able to get help from Apple. Please inquire!