Windows Black Screen Error1 How to Fix Black Screen Error After Windows 11 Upgrade (5 Minutes Solved) A black screen or no screen at all that occurs after Windows upgrade is an error in the display adapter driver or It may be caused by an output port connection error, etc. Below is a description of the solution when using dual monitors and booting in safe mode. dual monitor user 1. If the black screen error occurs after changing the monitor being used, check that the HDMI cable, HDMI splitter, o.. 2022. 1. 13. 이전 1 다음