ThinOS 2306 (9.4.2103) Recovery Image: New Imaging Process

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    ThinOS 2306 (9.4.2103) Recovery Image is intended for customers who want to install ThinOS 2306 (9.4.2103) recovery image ISO for OptiPlex 3000 Thin Client, Latitude 3420, 3440, 5440, OptiPlex 5400 All-In-One, and OptiPlex All-in-One 7410.

    Install ThinOS from a USB drive using Dell OS Recovery Tool

    1. Download Dell OS Recovery Tool at
    2. Download ThinOS 2306 and unzip file. You will now have ThinOS_2306_9.4.2103.iso
    3. Run the .exe file on the Windows system to create the USB drive, not a Thin Client Device
    The Dell OS Recovery Tool Application installer opens.
    4. Click INSTALL.
    5. After the installation is complete, open Dell OS Recovery Tool.
    6. Select SWITCH TO ADVANCED RECOVERY displayed at the bottom of the tool.
    7. Select an OS image, browse the ISO file you downloaded, and click NEXT.
    8. Select the USB drive that you want to format from the USB drive dropdown.
    9. Check the “I understand that the selected drive will be reformatted and existing data will be deleted” box.
    10. Click BURN OS.
    11. Remove the USB drive from the PC and insert the newly created ThinOS recovery USB drive in a device powered off on which you plan to install ThinOS. After inserting the USB drive, turn on the system.

    NOTE: After the USB drive is removed, Dell OS Recovery Tool returns to the screen displayed in Step 5.

    12. Press F12 at boot up until you see the Dell logo and Preparing one-time boot menu… displayed at the top right corner.
    The boot menu opens.
    13. In the boot menu, select the USB drive from the UEFI Boot Devices list.
    NOTE: If you cannot select the USB drive, ensure that Enable USB Boot Support option is enabled in BIOS.
    14. Enter the BIOS password if prompted. The default password for most Dell thin clients is Fireport.
    15. The thin client boots and a warning message with a 60-second countdown window is displayed. Wait 60 seconds or click OK to install the ThinOS image and application packages. The thin client reboots automatically. Click Manually to display the ThinOS image and application packages list. Select the ThinOS image and the application packages you want to install, and click OK to install these files. The thin client reboots automatically.
    16. The system continues imaging and reboots automatically once complete.
    NOTE: If you see the error “Fatal Error: Please make sure TPM or PTT is set to ON in BIOS.”, please turn TPM or PTT on in BIOS to continue the installation.

    For more information about installing ThinOS from a USB drive using Dell OS Recovery Tool, see the Dell ThinOS 2306 and 2303 Migration Guide at

    Noted Fixes & Enhancements
    – Supports new hardware configurations on the Latitude 3440, OptiPlex All-in-One 7410, and Latitude 5440 systems.
    – Improved the update process of the BIOS, applications, and operating system.
    – Updated the dynamic CPU speed on the system information screen.
    – Added the Enable Export Mode option on the system information screen.
    – Added Wyse Management Suite security compliance alerts.
    – Added Wyse Management Suite alerts for ThinOS device certificate expiration.
    – Added Soft reset.
    – Improved getting device logs from the WMS server.
    – Supports Manual override of monitor settings when changing the client between different WMS groups.
    – Updated resolution of the Display setup screen.
    – Disabled the Enable timeout option for the touchpad.
    – Added an additional Dell logo to the screen after powering on the system.
    – Added the Manage Known Networks option for Wi-Fi.
    – Updated LPD printer settings.

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