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Tag Archives: issue
Prepare Windows Server for Secure Boot certificate updates
[German]Auch Maschinen mit Windows Server müssen ggf. ihre Secure Boot-Zertifikate aktualisieren, wenn diese bis Sommer 2026 ablaufen. Microsoft hat die Woche daran erinnert, dass Administratoren ihre Windows Server entsprechend vorbereiten und selbst aktiv werden müssen, da es (im Gegensatz zu … Continue reading
Identify EWS apps and their use prior to EWS shutdown
Microsoft is retiring Exchange Web Services (EWS). This process will begin in October 2026 and end with the complete shutdown of EWS in 2027. I recently mentioned this in the German blog post Exchange Online: Zeitplan für das Ende von … Continue reading
Mail delivery issues on Microsoft servers (hotmail etc.)? Feb. 25, 2026
[German]A quick note to readers who use Microsoft email accounts. A reader informed me this morning that there are massive delivery problems to Hotmail addresses. There is also a second reader report in the discussion area asking about email problems … Continue reading
Outlook Classic: Bug hides mouse pointer (also in other MS 365 apps)
[German]Outlook Classic users are once again plagued by a silly bug that Microsoft has built into the software. The bug causes the mouse pointer to disappear unintentionally. It can also affect OneNote or other MS 365 apps. Microsoft has finally … Continue reading
Windows 11 24H2-25H2 Update KB5074109: Uninstall fails with error 0x800f0905
The security updates for Windows released on January 13, 2026 are causing major problems, and Microsoft has had to release corrective updates. In the case of crashes in apps and Outlook Classic, uninstallation was even recommended. This is unfortunate for … Continue reading
Posted in issue, Update, Windows
Tagged issue, Patchday 1.2026, Update, Windows 11
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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: Out-of-Band updates fixes Outlook freezes (Jan. 24, 2026)
There are various issues caused by the security updates for Windows released on January 13, 2026. Among other things, issues with Outlook Classic when retrieving POP mail or program freezes have been reported. On January 24, 2026, Microsoft released out-of-band … Continue reading
Windows 11 24H2/25H2: Citrix Director / Remote Assist fails with update KB5074109
Brief information for administrators of Citrix Virtual Desktop environments. I received several reports, that after installing security update KB5074109 from January 13, 2025, for Windows 11 24H2 or 25H2, Citrix Director failed to work. The reason is, that Microsoft Remote … Continue reading
Posted in issue, Security, Update, Windows
Tagged Citrix Director, issue, Update, Windows
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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