Hello
To perform an in-place upgrade of Windows 10 Enterprise 2016 LTSB to the most recent version of Windows 11 IoT without losing any data, you can follow these general steps:
Check Compatibility: Ensure that your hardware meets the Windows 11 IoT requirements. You can use the PC Health Check app to verify this.
Backup Data: Although an in-place upgrade should not affect your files, it's always a good practice to back up important data before proceeding with the upgrade.
Get Windows 11 IoT Media: Obtain the Windows 11 IoT Enterprise installation media. This is typically available through your volume licensing account if you have one.
Start Upgrade: Run the setup from the installation media. During the upgrade process, select the option to keep your files and settings.
Follow On-Screen Instructions: The upgrade wizard will guide you through the rest of the process. Make sure your device is connected to power and has an active internet connection during the upgrade.
Post-Upgrade Checks: After the upgrade, verify that all your applications and data are intact and that the system is functioning as expected.