Windows lets you hide folders. However, if someone gets hold of your computer they can easily view hidden folders. If you’re computer is likely to be used by many users, you’ll need an additional level of security.
Take it from Microsoft to jump into the fray for Online Storage and then show why they can attract customers / users. In an announcement on the Windows Live SkyDrive blog, Microsoft announced some updates to their online storage service. Space has been increased five fold from 5GB to 25GB of free online storage Control your data.