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Why does VirtualBox state that VT-x is not enabled in BIOS?

VirtualBox is only applicable to x.86_64 products, and it is not supported by ARM models. If you encounter the prompt “VT-x is disabled in the BIOS for all CPU modes” when using VirtualBox, it suggests that VT-x is not enabled in the BIOS of your TNAS device.

Please refer to the following instructions to enable VT-x in BIOS:

  • 1. Find the HDMI interface on the back of your TNAS device.

  • 2. Use a HDMI cable to connect your TNAS device to the monitor.

  • 3. Connect a USB keyboard to your TNAS device.

  • 4. Boot your TNAS device.

  • 5. Immediately after powering on, press the ESC or DEL key on the keyboard continuously until it enters the BIOS mode.

  • 6. In BIOS, please go to “Advanced” > “CPU configuration”> “VT-d”, and change “Disabled” to “Enabled”.

  • 7. Press F4 to save the settings, and restart your TNAS.