The latest Windows update is causing PCs to hang on startup

Night mode is supposed to help your eyes relax when working in twilight and in a dark environment, thereby making it easier to fall asleep later on. Photo: Andrea Warnecke/dpa

A new security update meant to provide protection against the security vulnerabilities Spectre and Meltdown for Windows 7, 8.1, and 10 is causing systems to freeze up and hang on startup.

According to the Windows 7 and 8.1 update history pages, the new update causes systems using certain antivirus software to stop responding shortly after startup. The page lists Avira, Avast, Sophos, and ArcaBit to be the antivirus softwares that are known to have the issue with the new update.