According to reports, Windows 11 blue screen is going black and this is a big change.
it’s possible for you to experience a black screen in the preview build by changing the registry setting.
If you meet it, try these solutions below.

Besides, Microsofts blue screen of death is changing to black.
This has been reported by multiple sources.
The change of background color attempts to better match the logon and shutdown screens in the new system.

Also,black screen of deathis called BSOD.
Up now, Microsoft hasnt officially commented on this change yet.
And the new BSOD could be something that Microsoft is testing during Windows 11 testing phase.
Windows 11 Black Screen of Death
Windows BSOD has been introduced for Windows 3 in 1990.
In a few years, some big changes were made to Windows BSOD.
That is, the sad face and QR code remain on the new operating system.
If you deliberately cause a certain error, you might still get the classic blue screen.
Of course, you wont see the black screen at once unless you deliberately crash your setup.
How can you fix Windows 11 black screen with cursor or Windows 11 black screen after login?