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  1. Support for OptiPlex 390 | Drivers & Downloads | Dell US

    Get drivers and downloads for your OptiPlex 390. Download and install the latest drivers, firmware and software for Windows devices.

  2. Dell OptiPlex 390 System BIOS | Driver Details | Dell US

    Aug 7, 2018 · For example: C:\ OptiPlex_390 _X.Y.Z.exe Where C is the drive letter of the USB device where the executable file is located and OptiPlex_390 _X.Y.Z.exe is the name of the …

  3. Dell Computers Tested for Update to Windows 11

    Oct 15, 2025 · Summary: This article lists Dell computers that have previously been tested for upgrade from Windows 10 to Windows 11, and to update from Windows 11 to Windows 11 …

  4. Optiplex model by year (HWcorner) | DELL Technologies

    Jan 24, 2024 · Hey redxps630! This is a really useful breakdown of Dell OptiPlex models by year — thanks for sharing! I’ve noticed that performance differences between Gen1 and Gen2 …

  5. How to fix PCI Simple Communication Controller Driver error

    Jul 8, 2021 · This article explains what is required when PCI Simple Communication appears in Windows device manager.

  6. Supported Operating Systems | Dell US

    Get the list of all the Supported Operating Systems for your Dell OptiPlex 390. See how this software supports your OptiPlex 390 computer’s basic functions.

  7. Support for OptiPlex 390 | Manuals & Documents | Dell US

    Sep 29, 2011 · Discover manuals and documentation for your OptiPlex 390. Choose a product or enter your Service Tag for customized content.

  8. Dell OptiPlex System Does Not Boot to Windows

    Sep 9, 2025 · Dell OptiPlex System does not boot to Windows A user may report that their OptiPlex computer fails to boot to Windows. This issue may occur for several reasons, some …

  9. Factory Reset, Restore, or Reinstall Microsoft Windows on a Dell ...

    Oct 14, 2025 · See the options for performing a computer restore, resetting Windows installation, or restoring Windows to factory condition on a Dell computer.

  10. Support for OptiPlex 390 | Regulatory | Dell US

    Find comprehensive compliance and regulatory information for your OptiPlex 390. Enter your Service Tag for tailored regulatory details.