They said Windows 7 was just a cosmetic upgrade, a more polished version of Vista with little to offer beyond the new wallpaper.

They couldn't have been more wrong.

Look beyond the headlines about interface tweaks and you'll find Windows 7 is crammed with lesser known, but still important, new and enhanced features, which taken together deliver improved performance and productivity, better troubleshooting, stronger security and a whole lot more.

http://www.techradar.com/news/software/operating-systems/50-seriously-useful-windows-7-tips-tricks-and-secrets-528483