Tag Archives: Windows

Microsoft's UEFI Secure Boot certificate expires in June 2026

[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 … Continue reading

Posted in devices, Security, Update, Windows | Tagged , , , , | 1 Comment

Windows 10/11: Preview Updates June 2025

[German]Microsoft has released optional, cumulative (preview) updates for Windows on June 24, 2025. There is currently only one preview update KB5058481 for Windows 10 22H2. These updates contain corrections that can be tested and are then generally rolled out as … Continue reading

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Microsoft Family Safety blocks Google Chrome browser (June 2025)

[German]Since the beginning of June 2025, users have been complaining that they can no longer use the Google Chrome browser while Microsoft Edge works. Windows 11 (and probably also Windows 10 and macOS) are affected. The cause is probably the … Continue reading

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Microsoft removes legacy drivers from Windows Update

[German]Drivers distributed automatically via Windows Update are a frequent annoyance, especially when newer drivers are simply replaced. Microsoft now wants to stopp distributing older and therefore unwanted drivers for Windows systems via Windows Update. The whole thing is to be … Continue reading

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ASUS Armoury Crate vulnerability CVE-2025-3464 allows admin privileges in Windows

[German]Brief information for readers who use ASUS Armoury Crate on their Windows systems. The vulnerability CVE-2025-3464 in the software allows an attacker to gain administrator privileges under Windows. ASUS has since updated the software to close the vulnerabilities.

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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/Server 2025 June 2025 updates cause BSOD in Proxmox/KVM/QEMU

[German]Users of the virtualization platform Proxmox and KVM/QEMU get BlueScreens on virtualized Windows VMs as soon as they install the June 2025 updates. It affects (Proxmox) hosts with AMD CPUs (Ryzen & Epyc). And I got reports, that Linux KVM … Continue reading

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Caution: Windows June 2025 updates bricks Fujitsu computers

[German]I received reports in comments of my German blog, that users of Fujitsu systems are ending with bricked devices during installing the June 2025 security updates for Windows. Die Rechner starten nicht mal mehr ins BIOS/UEFI. Ursache ist wohl eine … Continue reading

Posted in computer, devices, issue, Update | Tagged , , , , | 1 Comment

Windows network vulnerability CVE-2025-33073 (Reflective Kerberos Relay Attack)

[German]On June 10, 2025, Microsoft also patched the vulnerability CVE-2025-33073 with the security updates for Windows. This is a vulnerability in the Kerberos network protocol that was discovered by RedTeam Pentesting in January 2025. Below I disclose some information about … Continue reading

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Microsoft Security Update Summary (June 10, 2025)

[German]Microsoft released security updates for Windows clients and servers, Office and other products on June 10, 2025. The security updates eliminate 65 vulnerabilities (CVEs), two of which were classified as 0-day. One vulnerability has already been attacked. The following is … Continue reading

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Acronis Cyber Protect vulnerabilities jeopardize Linux and Windows systems

[German]Acronis Cyber Protect security vulnerabilities endanger Windows systemsShort note for users who use Acronis Cyber Protect in a Windows environment. There is a current security warning from the German Federal Office for Information Security (BSI). Several vulnerabilities in the product … Continue reading

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