Western Digital MyBook NOT so easy to take apart!!

Not all WD MyBooks are made the same. This is a 160GB one that will not come off.

[PR-dchw]

For anybody reading this, one of the little circles in the corner of the covers is actually false, it's just a sticker over the screw. Peel off the sticker, unscrew, and it opens.

[SawickiPeter]

It has one clip on top and one on the bottom plus the screw over the fake circle on the side. All you need to do is remove the fake sticker and screw, then push down on the top and bottom clips using a flathead screwdriver which are located at the front right of the drive and visible when looking through the holes and viola, the unit slides apart.