You can reset IGEL OS devices to factory defaults through the boot menu, but the best practice is to reset devices using the OSC as described in IGEL OS Creator Manual.
You can also reset your device to factory defaults in the UMS Console under Devices > Other commands > Reset to Factory Defaults, see Devices section in Menu Bar of the IGEL UMS Console.
If you select Reset to factory defaults, all personal settings on the device (including your password and the sessions you have configured) will be lost.
When you select Reset to factory defaults, the license will be preserved on the device. In case you want to remove the license from the device, see How to Move a License to Another Device.
A warning message will appear on the screen before the procedure is carried out. If the device is protected by an administrator password, you will be prompted to enter this password.
Do You Know the Password?
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Confirm the warning message.
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Enter the password. You have three attempts.
Do You Not Know the Password?
See How to Reset a Device with Unknown Administrator Password .