How to Delete a Networker License key

Open "Command Prompt" "Run As Administrator" or Unix "Root User"

To stop NetWorker services and dependent server services, "NetWorker Backup and 
Recover Server" and "EMC GSTService". on a Windows host:


Make sure you keep copy of res directory.

C:\>cd "C:\Program Files\EMC NetWorker\nsr\res"

C:\>nsradmin -d nsrdb

bash-$sudo nsradmin -d "/nsr/res/nsrdb"

NetWorker administration program.
Use the "help" command for help.
nsradmin>

Enter the following commands at the nsradmin prompt:

nsradmin> type: NSR license

nsradmin> print

nsradmin> delete

Delete? y

nsradmin> print

No resources found for query:

type: NSR license;

nsradmin> q

Start the NetWorker services and "EMC GSTService"