Microsoft Surface Pro user storage actually on par with 128 GB MacBook Air out of the box, test finds
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It turns out that not only is the free space on the Surface Pro comparable to the one on the MacBook Air, give or take a couple of gigs, but if you move the recovery partition to a USB flash drive or similar, you'd actually have more storage for personal data than on Apple's slim computer, and that's with fully accounting for the different ways Windows 8 and OS X measure storage capacity.
source: ZDNet
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