[German]When Windows 10 22H2 reaches out of support as planned on October 14, 2025, enterprises can buy Extended Security Update (ESU) licenses from Cloud Solutions Provider (CSP) to receive 3 extra years of security updates. Administrators who manage larger client fleets with Windows 10 22H2 via Microsoft Intune can activate the ESU licenses there.
[German]I'm revisiting a topic here on the blog that still has a year to go, but could have very unpleasant consequences. UEFI Secure Boot certificates expire in June 2026. In October 2026, the next expiring UEFI certificate for Secure Boot will be affected. Microsoft pointed this out last week and asked administrators to react.
[German]Microsoft has announced its plans for Windows 11 25H2, which will be released later this year, on June 27, 2025. Users of Windows 11 24H2 should be able to switch to this new build of the operating system with little effort. It will therefore be a small feature update, which will come with different support periods.
[German]Microsoft has started to deploy the KB5001716 update to machines running Windows 10 version 21H2 and 22H2 over the last few days. The KB5001716 update is an update that refreshes the update components so that the systems can switch to Windows 11 24H2. Here is a brief overview of the situation.
[German]A blog reader told me about a strange problem in Microsoft Outlook Classic. Since June 13, 2025, Outlook shows a few minutes after start a dialog box "Add service" and disables the internet connection. It affects only single clients in two enterprise environments. Perhaps a reader has an idea of what is behind this.
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[German]Security researchers from Rapid 7 have looked closer at various multi feature printers for vulnerabilities. They found them in the firmware of 689 Brother printer models. However, some printers from other manufacturers are also vulnerable.
Short addendum from this week: Microsoft had only released the optional, cumulative (preview) update KB5058481 for Windows 10 22H2 on June 24, 2025. Yesterday, June 26, 2025, the preview updates KB5060829 for Windows 11 24H2 and KB5060826 for Windows 11 22H2 – 23H2 were released. I have added the information in the article indows 10/11: Preview Updates June 2025.
[English]A small addendum from this week with good news for users and administrators of Microsoft Office 2024. The manufacturer has fixed a licensing bug that occurred during license management via Microsoft accounts.
[German]Since the beginning of June 2025, users have been complaining that they can no longer use the Google Chrome browser if Microsoft Family Safety is installed on Windows. I had reported on this – and now Microsoft has officially confirmed the whole thing in a support article and described the background and a workaround.
[German]Are you responsable for Citrix NetScaler ADC and the NetScaler Gateway as an administrator? Last week I had reported on serious vulnerabilities on Citrix products mentioned above that should be closed promptly by patching. Now Citrix has changed the description of CVE-2025-5777, the vulnerability (CVSS 9.3) is even more critical than expected. Citrix Bleed 2 is virtually back and unpatched instances are extremely vulnerable.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
