If you did not activate Full Disk Encryption during installation of the Management Zone, either by providing a license key or by turning on the evaluation, you need to do so now.
To activate Full Disk Encryption:
In ZENworks Control Center, click Configuration.
In the Licenses panel, click ZENworks 2017 Full Disk Encryption.
Select Evaluate/Activate product, then fill in the following fields:
Use Evaluation: Select this option to enable a 60-day evaluation period. After the 60-day period, you must apply a product license key to continue using the product.
Product License Key: Specify the license key you purchased for ZENworks Full Disk Encryption. To purchase a product license, see the ZENworks Full Disk Encryption product site.
Click OK.