![NEC Express5800/R120i-2M Installation Manual Download Page 63](http://html2.mh-extra.com/html/nec/express5800-r120i-2m/express5800-r120i-2m_installation-manual_4811566063.webp)
3. Installing Windows Server 2019
Installation Guide (Windows Server 2019)
63
Chapter 1 Installing Windows
3.
Perform license authentication.
When connected to the Internet:
Click
Change product key
.
Complete license authentication process according to the message.
When not connected to the Internet:
Go to Step 4.
4.
Perform the license authentication by phone.
Go to the appropriate step according to OS installation media you are using.
Backup DVD-ROM:
Go to Step 5.
Windows Server 2019 DVD-ROM:
Product key is already entered:
Go to Step 8.
Product key is not entered:
Go to Step 5.
5.
Right-click the lower left of the screen, and click
Run
from the menu displayed.