[German]Another addendum from the May 2025 patchday. The update KB5058405 rolled out on May 13, 2025 for Windows 11 22H2 / 23H2 leads to a blue screen with the error code 0xc0000098 on some systems. The system hangs in recovery mode because the ACPI.sys is causing problems and then wants to be repaired. There has been an out-of-band update since May 31, 2025 to fix the problem.
[German]On October 14, 2025, Microsoft will end support for Windows 10 22H2 with the delivery of the last security updates. Enthusiasts want to use the end of Windows 10 in the "End of 10" campaign to persuade users to switch to Linux. This is because Linux runs on these systems, while Windows 11 has hardware requirements that are too high.
[German]Brief information for WhatsApp users among our readership with older devices. The developers are cutting the ability to run WhatsApp on certain older devices running iOS. This will end on June 1, 2025.
[German]Microsoft Authenticator is a free app that allows you to log in to online accounts without using a password. Instead, options such as fingerprint, facial recognition or PIN are used. The app could also store passwords. However, this function will be switched off in July 2025. The Microsoft Authenticator app has now started to warn users that the password saving function will soon be removed.
[German]I'm pick up on a topic that is somehow already known in this form. Owners of Microsoft Office 365 accounts receive appointment invitations that claim that an action needs to be carried out. But in the background is a phisher who is trying to rip off victims. I have now come across a case where the emails come from Microsoft.
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[German]I'd like to discuss an email I allegedly received from Microsoft regarding an "expiring tenant". Something needs to be ordered because the tenant, which has been inactive for more than 200 days, will otherwise expire. Is it a legitimate mail or phishing, that is the question here? Spoiler: I have failed first to answer the question with 100 % certainty. Then a German blog reader directed me to the right platform – and yes, the phishing mail is a legit Microsoft mail – WTF!
[German]Recently, security researchers have pointed out a potential vulnerability lurking in the delegated Managed Service Accounts (dMSAs) newly introduced in Windows Server 2025. By abusing dMSAs, attackers can take over any principal in the domain. A security researcher is critical of the fact that Microsoft is waiting with a patch. And a developer has created a .NET PoC that can be used to test the vulnerability – here is an addendum.
[German]I'm going to post an issue here in the blog that came to my attention recently. It concerns the HP Aruba/HP 1930 switch, where there may be connection issues. If I'm interpreting it correctly, this is probably a software error which means that devices on certain connections (ports) can't get a connection. There are now various reports about this on the Internet.
[German]Microsoft has released optional cumulative (preview) updates for Windows 11 22H2-23H2 (KB5058502) on April 27, 2025 and for Windows 11 24H2 (KB5058499) on April 28, 2025. There is also the preview update KB5058481 for Windows 10 22H2. These updates contain corrections that can be tested and will then be rolled out as fixes in the following month.
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[German]Microsoft released an out-of-band update for Windows Server 2022 on May 23, 2025 to prevent the Hyper-V platform from freezing. On May 27, 2025 another out-of-band update for Windows 11 24H2 has been released to fix the same issue. And there is an out-of-band update for Windows 10 22H2. Here is a brief overview what's been documented by Microsoft.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
