You can either install:
The license key must be installed into NeoLoad with the license management tool. Choosing Help > License management > License section gives access to the Use a license file option.
.licfile and click OK.
Once the license file is loaded, the License Information section describes its content.
If the license file is invalid, it is either expired or deactivated for the machine—for more information, see Transfer a license key.
If the Status field shows "Not activated", it is necessary to activate the key, as described in Activate a license key.