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Verify the Computer Finishes Initial Power-Up (POST).

Operating computer sounds are not heard.

No diagnostic codes are present, and the power button lights up solid under its normal operating color.

An on-screen error message may be present such as 'No Boot Device', 'No Bootable Device' or 'Boot Device Not Found'.

The hard drive activity light may flicker, stay on or be off.

The Caps Lock key is illuminated when pressed.

The computer turns on, has video and proceeds past the Dell screen (Screen comes on and goes away) but Windows does not finish booting.

Some symptoms of a computer being in a no boot state: Computers that are passing the Dell BIOS screen at boot, but do not successfully boot to Microsoft Windows 11 or Windows 10.

This article describes general troubleshooting steps for computers that are powering up correctly. Closed captions: (English-only video, with subtitles available for several languages.)