Category Archives: Windows

February 2023 Patchday: EWS problems after Exchange Server security update

Posted on 2023-02-17 by guenni

[German]After the installation of the February 14, 2023 security updates, I got some reports from administrators that Exchange Web Services (EWS) is causing issues. For example, the calendar update isn't working. Uninstalling the security update solved the problem. Microsoft has … Continue reading →

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Windows 7/Server 2008 R2; Server 2012 R2: Updates (February 14, 2023)

Posted on 2023-02-15 by guenni

[German]As of February 14, various security updates have been released for Windows Server 2008 R2 (in its 4th ESU year) as well as Windows Server 2012/R2 (the updates may still install on Windows 7 SP1 and Windows 8.1). Here is … Continue reading →

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Patchday: Windows 11/Server 2022 Updates (February 14, 2023)

Posted on 2023-02-15 by guenni

[German]On February 14, 2023 (second Tuesday of the month, Patchday at Microsoft), Microsoft also released cumulative updates for Windows 11 22H1 and 22H2. In addition, Windows Server 2022 received an update. Here are some details about these updates, which are … Continue reading →

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Patchday: Windows 10 Updates (February 14, 2023)

Posted on 2023-02-15 by guenni

[German]On February 14, 2023 (second Tuesday of the month, Patchday at Microsoft), several cumulative updates were released for the supported Windows 10 builds (from RTM version to current version) as well as for the Windows Server counterparts. Here are some … Continue reading →

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Microsoft Security Update Summary (February 14, 2023)

Posted on 2023-02-15 by guenni

[German]On February 14, 2023, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for other products – released. The security updates fix 75 vulnerabilities, of which 9 are critical, 66 are important and … Continue reading →

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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 ...

Microsoft's TCP mess, how to optimize in Windows 10/11

Posted on 2023-02-14 by guenni

[German]Microsoft has made a few mistakes in the TCP implementation of Windows 10 and Windows 11 that severely limit the possible performance of TCP/IP connections. A blog reader brought this to my attention and immediately pointed out ways to possibly … Continue reading →

Posted in issue, Windows | Tagged , , | 7 Comments

Windows Server 2019/2022: Terminal Server / RDS with laggy or freezing Taskbar

Posted on 2023-02-12 by guenni

[German]I'm picking up on a topic that has come to my attention in fragments from my blog readers as comments as well as on Twitter. I have received several reports about problems with a freezing Windows taskbar or Start button … Continue reading →

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Changes in Edge: TLS certificate validation, no more uninstall, Server 2012/R2 support

Posted on 2023-02-12 by guenni

[German]Starting with Microsoft Edge 110, Microsoft changes the verification of TLS certificates and decouples them from the host. In Edge 109, Microsoft has probably removed the uninstall function, and there will still be Edge support for Windows Server 2012 R2 … Continue reading →

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Microsoft Support Diagnostic Tool (MSDT) for Windows 11 will be deprecated in 2025

Posted on 2023-02-11 by guenni

[German]Now it's confirmed what was only hinted at before. The developers are phasing out Microsoft Support Diagnostic Tool (MSDT) support for Windows 11 (and successor versions) in 2025. The first steps will be taken starting in 2023. The reason for … Continue reading →

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LocalPotato NTLM Authentication Vulnerability (CVE-2023-21746)

Posted on 2023-02-11 by guenni

[German]In mid-January 2023 month, I had pointed out a local NTLM authentication vulnerability (CVE-2023-21746) in my German blog post Nach RemotePotato0 kommt die Windows Local Potato NTLM-Schwachstelle (CVE-2023-21746). The two security researchers Andrea Pierini &anAntonio Cocomazzi refer to this as … Continue reading →

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