so i was perusing the feature comparison of the different versions. I read something a tad frightening. Based upon this comparison, encrypting File System (EFS) is now essentially a premium feature in windows. That is, you must purchase the Professional or if you can the Enterprise or Ultimate versions in order to use this feature. Furthermore, Bitlocker Hard Drive encryption is only in Enterprise and Ultimate versions. Based on this finding, I really dont know how Microsoft can make such a bold statement when not even the most expensive retail version of Windows 7 will give people a key security feature.
See here for a complete comparison.
http://www.winsupersite.com/win7/win7_skus_compare.asp
You do realise there are plenty of free offerings for Windows that do the same thing?