On February 10, 2026, Microsoft released security updates for Windows clients and servers, Office, and other products. The security updates address 54 vulnerabilities (CVEs), eight of which are critical, six of which were classified as zero-day vulnerabilities, and one of which is being exploited. Read more heree [use translate feature]
At the moment, Europe is desperately searching for alternatives to US software. LibreOffice is often mentioned as an alternative to Microsoft Office. Here in the blog, I keep hearing "There is no alternative to Microsoft Office because only their applications allow documents to be exchanged while retaining their formatting." Read more heree [use translate feature]
I would like to highlight a topic in this article that already dominated the headlines last week. Microsoft CEO Satya Nadella has appointed a quality and security officer. He hopes this will resolve the issues caused by the dismissal of testers in … Read more here [use translate feature]
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Microsoft Office 2016 to 2024 and Office 365 apps contain a zero-day vulnerability (CVE-2026-21509) that is being actively exploited in attacks. On January 26, 2026, Microsoft published initial information (also about mitigations) and emergency updates for Microsoft Office.
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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 users of Windows 11 24H2/25H2 if the uninstallation fails with error code 0x800f0905. I've discussed the details in this article [use the translate option in the side bar of my German blog to read the article in English or other languages].
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 updates for affected Windows versions to fix the problem. I've discussed the details in this article [use the translate option in the side bar of my German blog to read the article in English or other languages].
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 Assist used by Citrix Director fails.
I was "informed" yesterday by email titled "Third-Party Data Breach Affecting Uphold Users", claiming, that there had been a "data breach" at a third-party provider affecting Uphold users. Uphold is a platform that provides a wallet for cryptocurrency. But this is just scam. I'll summarize some information and explain why you should probably should stay away from the whole thing.
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.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
