Download Dell Precision M4400 System BIOS Update A29 for Windows/DOS

To start downloading Dell Precision M4400 System BIOS Update A29 for Windows/DOS, please choose one of the links from the list below.

  1. Precision M4400 System BIOS Update A29: M4400A29.exe

Run the BIOS update utility from Windows environment

  1. Double click the Icon on your desktop labeled M4400A29.exe.The Dell BIOS Flash window appears.
  2. Click the Continue button.The message Pressing OK will close all applications, shut down Windows, Flash the BIOS, then reboot. appears.
  3. Click the OK button. The system will restart and the BIOS Flash will be completed.

Run the BIOS update utility from DOS environment (Non-Windows users)

NOTE: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.

  1. Copy the file M4400A29.exe to a bootable USB key.
  2. Boot from the USB key to the DOS prompt.
  3. Run the file by typing Y:M4400A29.exe (where y is the drive letter where the executable is located).

Note: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system. If you does not enable BitLocker on your system you can ignore it.

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