The “Hit It” Myth
This may be the oldest of all. When the hard drive stops being detected,
some people tap it with a screwdriver or something similar during boot.
We have already seen this “procedure” done with an old hard drive, and it
was recognized in one of the attempts. The disk worked for some more
hours and then stopped for good.
We have received some disks with marks and dents on the outside, due to dozens of “taps”.
We can’t forget that the distance between the read heads and the disk
surface got shorter as time went by, and some modern disks (already
discontinued – that’s lucky) used to let loose a part of the arm where
we find the head parking and held it again when activated. It’s usual
to find pieces of those heads spread inside disks whose user or
technician used the “tap” solution. Those pieces scratch the disk in
such a way that there’s no way to recover its data anymore. That’s why
the “hit it” technique makes matters worse: before you could recover
your data, but after having used it in disk of that type, the disk
becomes totally irrecoverable.
Note, bottom line is hitting the drive may
on very limited situations allow a drive to work, however it is MUCH
MORE likely to cause severe if not terminal damage to your drive,
therefore we do not recommend this.