Access BIOS in VMWare Virtual Machine

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In case you need to access BIOS / Safe mode for your virtual machine inside VMWare. You could use these following tricks:

Modify .vmx

  1. Modify bios.forceSetupOnce = “TRUE” (used to force entry to BIOS on startup)
  2. Modify bios.bootDelay = “xxx” (used to add delay to initial POST screen; in miliseconds)

vSphere, vCenter

  1. Connect to vSphere
  2. Right click on the virtual machine you want to edit in the inventory view
  3. Click Edit settings > Options > Boot Options
  4. Set the Power-on Boot Delay or select Force BIOS Setup


Click VM > Power > Power On to BIOS

Hope these helps, cheers 🙂


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