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Category Archives: issue
Outlook New app no longer launches (since Dec. 5, 2025); workaround
An update to the new Outlook app, rolled out on December 5, 2025, causes issues. After that update, users recognized, that the app no longer starts. Clicking on the icon does nothing. Many users seems to be affected.
WordPress 6.9 causes "blog freezes"
WordPress 6.9 was released on December 2, 2025 (I reported on this in the post WordPress 6.9 erschienen). I had to revert back to version 6.8.3 from October 2025 within my German IT blog because WordPress version 6.9 causes short … Continue reading
Crude root cause of packet loss with a WiFi connection
[German]A little story from the campfire as a Sunday sermon that caught my attention this week. One user had a problem with repeated packet loss on his WiFi connection. He set out to investigate and stumbled upon an incredible story. … Continue reading
Windows 11 25H2: Umlaut bug affecting Azure OneDrive users
[German]A German user pointed out a major umlaut bug in OneDrive that is causing problems for Azure users. Clients running Windows 11 25H2 cannot access OneDrive if the Azure username in the profile contains an umlaut.
Windows file preview broken with Oct. 2025 update: Microsoft explains why it's by design – Part 2
[German]The security updates for Windows released on October 14, 2025 cause the preview of files (e.g., PDF documents or Office documents) in Explorer to be blocked in some cases. I described the problem in Part 1. On October 22, 2025, … Continue reading
Why ISL Online: Critical factors when choosing a remote desktop solution
[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...
Windows: File preview in Explorer broken after October 2025 update – Part 1
[German]Die Oktober 2025-Updates für Windows scheinen einen negativen Effekt auf die Vorschau von Dateien im Explorer zu haben. Mir liegen Berichte vor, dass PDF-Dokumente oder andere Dokumentdateien nicht mehr in der Vorschau geöffnet werden – speziell, wenn sie auf Netzwerkfreigaben … Continue reading
Windows 11 24H2-25/H2, Server 2025: SID duplicates cause NTLM/Kerberos authentication errors
[German]On October 21, 2025, Microsoft issued a statement regarding a problem with NTLM/Kerberos authentication. Authentication errors occur in these operating systems when SIDs are identical on multiple computers and certain updates from August or September 2025 are installed. This is … Continue reading
Bug causing Outlook 365 Classic not to start reportedly fixed
[German]For weeks, Microsoft Outlook 365 users have been plagued by a program that crashes on startup when connecting to Exchange Online. Microsoft now plans to roll out a fix to resolve the issue.
Windows 11 24H2-25H2: Out-of-Band-Update KB5070773 fixes USB keyboard and mouse issues in WinRE
[German]Microsoft has fixed the problems with USB keyboards and USB mice in Win RE with a special update KB5070773 for Windows 11. The problem was affected or fixed in Windows 11 24-H2 – 25H2. The affected USB devices should work … Continue reading
Windows bugs: Update and shutdown; Lock screen; Start menu and search
[German]I'm going to compile a list of bugs and inconsistencies related to Windows 10/11 that I've recently come across in a single post. The "Update and shut down" function in the Start menu seems to be broken in Windows 11, … Continue reading