Microsoft’s latest security patches appear to be causing some PCs to seize up and display a black screen. The problem affects Microsoft products including Windows 7, Vista and XP operating systems. Microsoft apparently made changes to the Access Control List (ACL), a list of permissions for a logged-on user. The effect is that some installed applications aren’t aware of the changes and don’t run properly. Microsoft officials could not be immediately reached for comment. The company has released software that fixes the registry to match the registry settings.”]
Source: https://www.csoonline.com/article/2124608/latest-microsoft-patches-cause-black-screen-of-death.html