Perform the following to prepare Master image:
Install the Agent manually.
For more information, see Section 10.5, Manually Deploying the Agent on Windows.
Take backup of initial-web-service file from the %ZENworks_Home%\conf location.
If you want add a registration key, you can add in the initial-web-service file.
Unregister the device by using the zac unr command.
Clear the Workstation GUID by using zac fsg -d command.
At the command prompt, go to %ZENworks_Home%\bin\preboot folder, then run the ZISWIN.exe -w command to clear Image-safe Data.
Clear the cache by using the zac cc command.
Copy the backed up initial-web-service file to %ZENworks_Home%\conf location.