How to Install Dell BIOS Using the 64-Bit BIOS Installation Utility

Summary: Upgrade your Dell BIOS with the Dell 64-Bit BIOS Flash Utility (Flash64W.exe). Follow our guide for installation using Flash64W to ensure your computers optimal performance.

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Instructions

Affected Products

  • 64-Bit BIOS Utility

Dell now has a utility to allow for BIOS upgrades in a native 64-bit environment (WinPE).

Begin by downloading the Dell BIOS Flash Utility 64 Bit, by going to the computers product page and clicking Drivers & Downloads.

Dell BIOS Flash Utility 64 Bit

Note: The version number may differ from that in the screenshot above.

Install Instructions

  • Download the BIOS executable for the specific computer that you are going to update and place it in a directory of your choice.
  • Download Flash64W.exe and place it in the same directory as the BIOS executable.
  • Open a Windows command prompt (The Command Prompt: What It Is and How to Use It on a Dell System) and go to the directory that you placed the BIOS and the Flash64W.exe file.
  • Type: Run Flash64W.exe /b=BIOSExecutableName.exe

Example: Flash64W.exe /b=XPS_9350_112.exe

Note: This is for Client computers only and does not work on Enterprise servers.
Article Properties
Article Number: 000147030
Article Type: How To
Last Modified: 22 Jul 2025
Version:  11
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