How to Open Boot Menu Windows 10: Step-by-Step Guide for Beginners

The Windows 10 boot menu used to start from a USB drive or another boot device is normally provided by the computer’s UEFI/firmware, so the key varies by manufacturer. Windows can also restart into Advanced startup, which may offer a Use a device option. As of October 14, 2025, Windows 10 is outside its standard support period.

Steps

Step 1: Save your work

Close applications and save open files before restarting.

Step 2: Try Windows Advanced startup

From Settings, go to Update & Security > Recovery, then use Restart now in the Advanced startup section.

Step 3: Choose a boot device when available

In the recovery menu, choose Use a device and select the bootable USB or other listed device.

Step 4: Use the manufacturer’s one-time boot key if necessary

If Use a device is unavailable, restart and press the manufacturer’s documented boot-menu key during startup. Common keys exist, but verify the exact model rather than repeatedly guessing.

Step 5: Select the intended device

Choose the correct UEFI USB, internal drive, or other boot entry. Do not change unrelated firmware settings.

What Happens Next

The computer starts from the selected device for that boot when the media is valid and compatible with the firmware configuration.

Troubleshooting and Useful Details

If a USB drive is missing, confirm that it is actually bootable and compatible with the system’s UEFI settings. Avoid disabling Secure Boot or changing storage-controller modes unless the operating-system or hardware vendor specifically documents that requirement.

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