STOP screen when installing Windows NT 3.5 on 386 SMP machine

This article was previously published under Q121043

3.50
WINDOWS

When running Windows NT 3.5 setup on a 386 multiprocessor machine you receive this a STOP message when rebooting from text setup to GUI setup:

This is issued because Windows NT 3.5 no longer supports 386 multiprocessor machines. The only machine that was supported by Windows NT 3.1 and is now not supported by Windows NT 3.5 is the Compaq Systempro Dual 386/25. It has been removed from the Windows NT 3.5 Hardware Compatibility List.