To obtain a trial version
Log in to MySonicWall.
If you do not have a MySonicWall account, refer to Creating an MSW Account.
Select Network Security Manager (NSM) On-Prem.
When you purchase NSM, you need to activate the license.
To activate a trial NSM license
Type the Activation Key in the appropriate field and click Activate.
You also have an option to upgrade the Serial Number under Product Details.
While in MySonicWall, you should download the NSM image for later installation.