Windows 10/11: May 2025 updates triggers Bitlocker Recovery and BSODs

Windows[German]Update KB5058379 for Windows 10 22H2 (and also the Windows 11 pendants) from May 13, 2025 has caused issues for some users and administrators. Windows was locked on affected machines because the system requested the Bitlocker recovery key when booting. There are also reports of blue screens caused by the update.

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Exchange Online: Can't change Tenant setting (since mid-May 2025)

Exchange Logo[German]I'm posting an observation here in the blog that a reader pointed out to me – a second reader also seems to be affected. Administrators of Exchange Online tenants have noticed since around May 14, 2025 that they can no longer make changes to the mailboxes. Adjusting permissions is therefore impossible.

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Microsoft confirms and fixes the Outlook login error [4usqa], CAA2000B and 49dvs

[German]Microsoft is not having a good run with its Outlook Classic for Windows and Mac at the moment. The company has just had to confirm logon errors that are being reported with the error code [4usqa] (or CAA2000B and 49dvs).

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Proofpoint acquires German e-mail security provider Hornetsecurity

[German]On May 15, 2025, the security company Proofpoint announced its intention to acquire the German provider Hornetsecurity GmbH. The company is active in the field of email security and SPAM protection for domains.

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Issues with Visual C++ Redistributable and ODBC

Stop - Pixabay[German]Brief information for administrators and IT supporters. There have "recently" been an update of Microsoft Visual C++ Redistributable, which interferes with the ODBC driver. This affects several software, like German DATEV applications and the SFirm financial software of the savings banks. Several blog readers have informed me independently of each other and I have put the information together in one post.

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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 ...


Belgian court: The TCF framework is not GDPR-compliant

Paragraph[German]A Belgian court has now ruled on a complaint by data protectionists regarding the TCF framework. The judges consider the TCF framework to be non-compliant with the GDPR. This poses a problem for the online advertising industry around Microsoft, Google and Co. because they use cookie consent via the TCF framework.

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Patchday: Microsoft Office Updates (May 13, 2025)

Update[German]On May 13, 2025 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for Microsoft Office 2016, as well as the C2R variants (Office 2016-2021 and 365) and other products. Below you will find an overview of the available updates.

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Support for Microsoft 365 extended for 3 years for Windows 10 ESU systems

[German]Regular support for Windows 10 22H2 ends in October 2025. However, users can obtain Extended Security Updates (ESU) for a fee. Microsoft recently announced that the Office apps that come with Microsoft 365 will be provided with security updates for these systems for a further three years.

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Windows: Issues with Zebra label printer (May 2025)

Windows[German]A quick question for the blog readers who administer Zebra label printers. Have there been problems with the output under Windows for a few days? A blog reader who works as an IT supporter contacted me by e-mail on May 13, 2025 and reported problems under the subject "Microsoft May updates and Zebra label printers".

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Patchday: Windows Server-Updates (May 13,  2025)

Windows[German]On May 13, 2025 (second Tuesday of the month, Patchday at Microsoft) various cumulative updates were released for the supported versions of Windows Server. Below I have extracted the provided updates along with some details for these Windows Server versions (from Windows Server 2012 to 2025).

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