Windows Server 2012 R2 offers a wide range of new enhanced features and capabilities, including server virtualization, working with software-based storage and networks, server automation and management, web and application platforms, access and information protection, and infrastructure virtual desktops and more.
Software license activation procedure
Connect to the Internet to attempt to activate the software licensing service.
Activation by phone.
Users without an Internet connection can activate a 10-day grace period by running the following commands from the command line with elevated privileges:
Slmgr / rearm
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