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A critical security feature, it allows for encryption of entire hard drives, providing high-level protection for sensitive data against theft.
Released on February 22, 2011, SP1 was a culmination of previously released security and stability updates, rather than a radical overhaul. Windows 7 Professional vs Windows 7 Ultimate - Super User windows-7-ultimate-sp1-full-version
The ability to boot directly from a virtual hard disk file gives IT professionals greater flexibility for testing and operating multiple environments. A critical security feature, it allows for encryption
Users can switch between 35 different languages instantly via Windows Update, a major advantage for global companies or multilingual households. A critical security feature
A favorite for home enthusiasts, it supports watching and recording live TV. Service Pack 1 (SP1): Stability and Refinement