A few days back, Microsoft released its Insider build 22000.346 to the Beta and the Release Preview channels. And among the many changes and fixes it brought, like those for printer issues, it also noted that the firm was revertingto the color blue for its stop error screen, which is more commonly called the Blue Screen of Death (BSOD).
The changelog point denoting this reads:
We changed the screen color to blue when a device stops working or a stop error occurs as in previous versions of Windows.
Microsoft has used the blue color for a long time now but switched it to black when it launched the insider preview builds of Windows 11. Other than the color of the background itself though, there wasn't anything else that was different with the black BSOD. Hence, switching it back to blue was probably not too difficult for the Redmond giant.
If you recall, the company made a similar change back in 2016 when it had introduced the Green Screen of Death for Insider preview builds. According to Microsoft, this was done to make it easier to distinguish errors on preview builds from final stable versions. And the company may have applied somewhat of the same reasoning here too for the Windows 11 previews.
The first GA of Windows 11 has long been out and so Microsoft may have felt it was time to get back the BSOD to its blue roots. However, there could be some other reason too that we aren't aware of.
via Ars Technica