This is from Windows NT 3.51 ( Italian localization).

The original Blue Screen of Death first appeared in Windows NT 3.1. As with prior versions, Windows 3.x exits to DOS if an error condition is severe enough.

Windows 3.1 also displays a blue screen when the user presses the Ctrl+Alt+Delete key combination while no programs are unresponsive to bring up a rudimentary task manager (the reverse is true for when there are unresponsive programs). Windows 3.1 changed the color of this screen from black to blue. Windows 3.0 uses a text-mode screen for displaying important system messages, usually from digital device drivers in 386 Enhanced Mode or other situations where a program could not run. This is not a crash screen, however upon crashing, Windows 1.0 either locks up or exits to DOS.

This function still exists in the final release (version 1.01) however, this screen prints out random characters after the 'Incorrect DOS version' text as a result of a bug in the Windows logo code after the other text messages were removed. Windows 1.01 Blue Screen of Death: Long version, showing installation of MS-DOS 6 and Windows 1.01, and the failed startup of Windows 1.01.Īn early blue error screen first existed in the Beta Release of Windows 1.0 if Windows found a different DOS version than it expected, the error message 'Incorrect DOS version' alongside other text messages detailing what check failed to pass would be appended to the boot screen before starting normally. Windows 1.0 BSOD (Incorrect DOS Version): Short version, showing a failed Windows startup.

Videos of the boot screen on Windows 1.01 filled with random characters due to an incorrect DOS version.

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