When you download a new bootable image (.iso), all the previously created files may stop working. Unless you have Auto Enrollment turned on.
Browse to Entsecure OS Manager Portal (https://portal.entsecure.com)
On the left menu, click on Create Bootable USB
End-Users can customize the language, keyboard, and default timezone as per their preference.
Network Settings (Optional)
Click on Save Config & Create Bootable USB
The process will take around 2 mins, and a new EntsecureOS.iso (approx 2.5 GB) file will be downloaded.
You can now use this file to install this OS in a Virtual Machine such as VMWare or you can create a bootable USB drive to install on a machine.
The .iso file is specific to your organization and should not be shared with any non-authorized person.