Outlook New no longer starts after update (C-Runtime problem)

[German]A blog reader reports a strange problem. Outlook New is used as an app there. Since the app automatically restarted after an update (must have been to version 1.2025.813.500), it can no longer be opened. It looks as if the VC runtime is causing problems.

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Windows 10/11: Out-of-Band-Updates KB5066188 / KB5066189 (19. Aug. 2025)

Windows[German]On August 19, 2025, Microsoft released the previously announced out-of-band updates for Windows 10 (KB5066188) and Windows 11 (KB5066189). These updates replace the regular updates from August 12, 2025, and are intended to resolve the reported issue with the broken restore and recovery.
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August 2025 Patch Day Review: Upgrade Error 0x8007007F; Reset/Recovery Broken

Windows[German]The August 2025 updates introduced various bugs in Windows, which Microsoft has since confirmed. On some Windows systems (clients, servers), the upgrade to new versions fails with error 0x8007007F. In addition, the reset and restore functions are reportedly broken on some Windows versions.

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Cyber incident at SIP trunk provider Colt (from August 14, 2025)

Sicherheit (Pexels, allgemeine Nutzung)[German]I have no idea whether and how many blog readers use the SIP trunk services of the provider Colt (colt.net) for telephony. The provider has suffered a cyber incident (possibly since last Thursday). This also affects the SIP trunk solutions of customers (like German Starface Connect).

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CheckPoint analysis of the 0-click EchoLeak vulnerability in Microsoft Copilo

Copilot[German]In June 2025, security researchers reported the first zero-click vulnerability they had encountered in the Microsoft 365 Copilot AI application. Attackers could use this vulnerability, known as EchoLeak, to force Microsoft 365 Copilot to exfiltrate data. Check Point Research has now published an initial analysis of the situation.

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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 11 24H2: Does the Aug. 2025 update KB5063878 cause SSD errors?

Windows[German]There are reports that the cumulative security update KB5063878 released on August 12, 2025 for Windows 11 24H2 causes serious SSD problems. When transferring large amounts of data, errors are said to occur reproducibly when saving to certain SSDs with certain controllers. This can lead to data loss.

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Windows Server 2019: Update KB5063877 fixes cluster service bug

Windows[German]A brief addendum from last week's August 2025 patch day. Microsoft has fixed a cluster service bug that had been occurring for some time (since July 2025 patchday) in Windows Server 2019 with the KB5063877 update from August 12, 2025. The bug in the Microsoft Changjie Input Method has also been fixed.

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Windows Server 2025: Bug in the schema master role of the DC

Windows[German]Quick note to administrators who use Windows Server 2025 as a domain controller (DC). I have been informed that there is a bug when using the schema master role. The bug may lead to duplicate entries, which causes a schema mismatch error on other domain controllers. The issue is already being addressed.

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Microsoft on new Universal Print features

Drucker[German]Microsoft announces Universal Print Anywhere A quick update from this week. Microsoft has announced that Universal Print Anywhere is now generally available. With this new feature, users can print securely from any location and retrieve their documents from any printer using pull printing. This feature only works with Microsoft software.

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Cisco Secure Firewall Management Center with CVSS 10 RCE vulnerability CVE-2025-20265

Sicherheit (Pexels, allgemeine Nutzung)[German]Once again, Cisco is in hot water. The Remote Code Execution (RCE) vulnerability CVE-2025-20265 was found in their Secure Firewall Management Center. This vulnerability was rated with the maximum possible CVSS 3.1 score of 10.0. Administrators need to react immediately.

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