Completing Windows Configuration

Activate Your Windows Operating System License

Using one of the following methods, activate your Windows operating system licenses.

Over the Internet

When the partition images on your enterprise partition platforms are connected to a public network and can access the Internet, do one of the following to activate your Windows operating system licenses over the Internet:

For Windows Server 2012 or Windows Server 2012 R2, locate and click the flag-shaped Action Center icon in your system tray, and then select Activate Windows Now (important).
For Windows Server 2008 R2, click the Activate Windows link in the Server Manager.

By Telephone

To activate your Windows operating system licenses by telephone, do the following:

Obtain the product keys from the Windows Certificates of Authenticity (COAs) affixed to the partitionable enterprise partition platform (PEPP).
Launch a Command Prompt window with administrative privileges.
At the prompt, execute the following command:
```
slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
```
Where XXXXX-XXXXX-XXXXX-XXXXX-XXXXX is the product key on your COA. Be sure to use the appropriate product key according to your site implementation of licensing for partitions on your platforms.
A message that the product key was successfully installed appears.
Reboot the partition.
Launch a Command Prompt window with administrative privileges.
At the prompt, execute the following command for telephone-based activation:
```
slui 4
```
The Windows Activation wizard appears.
Step through the wizard to activate your license by telephone.

Configure Time and Time Zone

Unisys-supplied Windows partition images are set to use UTC by default. If applicable, set the correct time zone and time for your location.

Configure Windows Update

No Windows updates are included in the Unisys-supplied Windows images, and the Windows Update setting in the images is not configured. If applicable, configure the Windows Update setting and install any desired updates.

Configure MTU Size

The default maximum transmission unit (MTU) size for each InfiniBand interface is set to 1500 Byte packets. If large Jumbo Packet sizes are required, set the MTU size for each InfiniBand interface to 2044 to ensure smooth data transmission over the IP-LAN secure fabric.

To configure the MTU size, access the Device Manager MMC snap-in, locate and right-click the InfiniBand interface device, and then select Properties. In the properties dialog box for the device, click the Advanced tab, select the property Jumbo Packet, and then set the value to 2044. Repeat for all InfiniBand interfaces.

Note that the MTU size must be set to the same value across all interfaces that will communicate with each other. That is, if an interface is in a Linux partition, a user with administrative privileges must set or change the value for the MTU size parameter within the interface configuration file (ifcfg-bondx.yyyy, where x.yyyy identifies the vBDF and pkey for the interface respectively) of the Linux operating system to 2044.