On Friday afternoon, Microsoft wrote it’s fully deployed a fix for an issue in Windows that caused application shortcuts in the Start menu or taskbar to disappear. Multiple IT admins detailed the problem on Twitter and Reddit this morning, and Microsoft confirmed it was related to a recent update to the Microsoft Defender threat detections.
The problem is affecting businesses and organizations using Microsoft 365 and Defender for protection against malware, viruses, and other threats. In a note to customers, Microsoft said it received reports that a certain attack surface reduction (ASR) rule is causing the problems. Earlier in the day, IT admins tried to work around the issue by setting the “Block Win32 API calls from Office macro” rule…