Standard WS2012 Eval Key:

D2N9P-3P6X9-2R39C-7RTCD-MDVJX

W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9

HHRHF-YMNJW-RPGCC-VV68W-BWMVY

3/18/2014 (IR3) Build 9600

1Q2w3e4r\ (CHE OS)
1Q2w3e4r (RHE OS)

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Steps to Activate Software License  

Connect to the internet, which will allow the software licensing service to attempt activation
Telephone activation
Users with no internet connectivity can trigger the 10-day grace period by running the following commands from an elevated command prompt:
Slmgr /rearm
Shutdown –r