[German]Users of Microsoft Teams (Free version) and other Microsoft apps (Word, Excel, etc.) have encountered sign-in issues on Windows 11 24H2–25H2 after installing update KB5079473 from March 10, 2026. On March 21, 2026, Microsoft released the out-of-band update KB5085516 to resolve these issues.
[German]The Windchill and ZeroPLM software systems contain critical vulnerabilities (CVS Index 10.0) that companies using these products should have been aware of since the weekend. These vulnerabilities have prompted various German state criminal investigation offices to send police officers to visit system administrators, a inform them to take action (a move that has caused quite a stir).
[German]I'm going to break down a brief issue—along with its solution—in a separate blog post, one that has been plaguing Windows users since the January 2026 Patch Day. Certain Nvidia graphics chips experienced display issues, even on Windows 10, after the January 2026 security updates were installed. Readers report that the March 2026 update for Windows 10 resolves the issue.
[German]Two critical vulnerabilities have recently been disclosed in the Ubiquiti UniFi Network Application. Vulnerability CVE-2026-22557 has a CVSS score of 10.0 and can be exploited without authentication to take over an account. CVE-2026-22558 has a CVSS score of 7.7 and allows for privilege escalation.
[German]Microsoft is currently investigating a reported issue with Outlook Classic. There are user reports that using the Microsoft Teams Meeting add-in causes the Outlook Classic client to crash or become unusable.
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[German]A quick question for users and administrators who are still using Microsoft Outlook 2019 (support for Office 2019 expired in October 2025). I've received a report that it's currently no longer possible to connect to Exchange Online mailboxes. There have also been reports that Outlook 2021 and Outlook 2024 LTSC—and possibly Outlook 365 as well—may be affected. However, there is a workaround that seems to be helping those affected.
![Copilot](https://borncity.com/blog/wp-content/uploads/2026/03/Copilot.jpg" "Edge")
[German]At Microsoft, the restructuring and reorganization of its AI division continues. Mustafa Suleyman is no longer directly responsible for the Copilot division. And Microsoft has apparently put a temporary halt to its attempt to roll out Copilot across all areas by hook or by crook. The company is now focusing on paying Copilot customers and reducing the forced integration of Copilot in other areas. Below is an overview of the current situation.
[German]Since late January/early February 2026, users have been complaining that Outlook can no longer recognize umlauts and displays them as question marks. Microsoft appears to have recently fixed this issue in Outlook.
[German]A brief note for administrators who have Windows 11 Enterprise LTSC 2024 in their environment. On March 16, 2026, Microsoft released an out-of-band (OOB) update, KB508489, as a hotpatch for this operating system. This update is intended to resolve issues in the Bluetooth stack of the Long-Term Servicing Channel (LTSC) version of Windows 11 Enterprise LTSC 2024.
[German]Microsoft has confirmed two issues with Microsoft Outlook Classic that are currently under investigation. One issue involves a failed connection to Exchange servers when creating groups. The other issue concerns the synchronization of Outlook clients after a password has been changed for Gmail and Yahoo accounts.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
