Installation Guide

3. Setting Up Windows Server 2012 R2
Express5800/T110g-S, R110g-1E, T110g-E Installation Guide (Windows)
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Chapter 1 Installing Windows
Enter the product key.
Hereafter, complete license authentication process according to the message.
(2) Server Core installations
1. At the command prompt, enter the following, and then press <Enter> key.
slmgr –dli
If license authentication is required, go to the next step.
If your license is already authenticated, you can skip the next and the subsequent steps.
2. Change the product key.
When using Backup DVD:
Type the following command, and then press the <Enter> key.
When using Windows Server 2012 R2 DVD-ROM:
You do not need to change the product key.
Go to the next step.
3. Perform license authentication.
When connected to the Internet:
License authentication is performed via the Internet.
Type the following command, and then press the <Enter> key.
This completes authentication.
C:\Users\administrator>slmgr –dli
C:\Users\administrator>slmgr –ipk <Product key on COA label>
C:\Users\administrator>slmgr –ato