PXIe controllers that have been purchased with Windows 10 have a unique digital product key inserted into the BIOS of the system. Therefore, after installing Windows you need to connect your controller to the internet to activate your Windows automatically.
If you do not have internet access you will need to activate by phone. If your PXIe controllers have Windows 10 Pro installed, you can call Microsoft and quote the Product ID from Start button » Settings » Update & Security » Activation.
As of Aug 2019, all NI Windows 10 PXIe controllers are shipped with Windows 10 IoT Enterprise. If your PXIe controllers have Windows 10 IoT Enterprise installed, you can use Key Management Service to activate by phone.