Windows 11 24H2: Performance issues with Intel Core Ultra 200 CPUs – Feb. 2025 update with side effects

Posted on 2025-02-28 by guenni

Windows[German]The next blog reader with performance problems under Windows 11 24H2 has reached me. The reader set up a system with an Intel Core Ultra 9 285K CPU on an ASRock Z890 Pro RS mainboard and installed Windows 11 24H2. Then he ran into massive problems. He has since been able to verify the behavior on a notebook. In addition, there is another reader message reporting unsightly effects of the February 2025 update under Windows 11.

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Windows 11 24H2: Update KB5051987 fails with installation error 0x800F0838

Posted on 2025-02-27 by guenni

Windows[German]I have come across a report that the February 2025 update KB5051987 can cause problems during installation. The update cannot be installed in Windows 11 24H2 and aborts with the error code 0x800F0838. The cause is probably a missing Servicing Stack Update (SSU). Here are a few information about this issue and how to fix it.

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Microsoft RDS activation fails – Clearinghouse server not reachable?

Posted on 2025-02-26 by guenni

Windows[German]A quick question for the administrators among the blog readership who are responsible for Remote Desktop Server. A reader has just informed me by email that there have been problems with RDS activation since Friday, February 21, 2025. The cause is that the Microsoft Clearinghouse server is simply unavailable. It looks like an outage – are there others affected?

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Windows 10/11: Preview Updates Feb. 2025

Posted on 2025-02-26 by guenni

Windows[German]Microsoft has released optional, cumulative (preview) updates for Windows 10 22H2 (KB5050081) and Windows 11 24H2 (KB5052093) as well as Windows 11 22H2-23H2 (KB5052094) on February 25, 2025. These updates contain corrections that can be tested and will then be rolled out generally as fixes in the following month. It should be noted that preview updates must be manually initiated for download and installation by default (although Windows 11 22H2 and higher contains options for automatic installation).

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

MS365, Outlook and Exchange Online issues: Appointments, Mails etc.

Posted on 2025-02-26 by guenni

[German]Today I'm posting a collection of problems that I've recently encountered from readers or on the Internet in connection with Microsoft 365 (Outlook 365), Outlook 2024 and Exchange Online. From temporarily disappearing appointments or parts of email signatures to undeliverable emails to Strato, everything is included.

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Posted in Cloud, Office | Tagged , | 1 Comment

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 ...

Adaptec download site is dead – it's now Microchip

Posted on 2025-02-25 by guenni

[German]Brief information for people who may still be looking for drivers and firmware from Adaptec. The download area is no longer available – thanks to the reader who contacted me about this. The downloads should now be available at Microchip.

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Windows 11 24H2: VMware Workstation Pro 17.x extremely slow

Posted on 2025-02-25 by guenni

Windows[German]I have received a user message about problems with virtualization using VMware Workstation Pro 17.x on Windows 11 24H2 clients. One user complains that the guest operating systems run extremely slowly. When VMware Workstation is started as a special administrator, virtualization works as expected.

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IIS Crypto 4.0 released

Posted on 2025-02-24 by guenni

[German]Nartac Software has already released version 4.0 of its small tool IIS Crypto on February 13, 2025. Support for Windows Server 2025 has been added, as well as support for the TLS_CHACHA20_POLY1305_SHA256 Cipher Suite.

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Azure outage shuts down Norway's government sites (Feb. 20, 2025)

Posted on 2025-02-24 by guenni

[German]On February 20, 2025, there was a major disruption to the Microsoft Azure Cloud in Norway. The affected services were unavailable for hours. Norwegian authorities and the government were among those severely affected, as they had moved their services to the Microsoft cloud.

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Windows: UDP storm from dasHost.exe

Posted on 2025-02-24 by guenni

Windows[German]I'll take up a topic for the readership that Frank Carius noticed when he recorded an RTP session via UDP using Wireshark. In the recording, he found a large number of UDP broadcast packets on ports 22222 and 3289. Of course, the question immediately arose as to what was causing these UDP broadcasts.

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Posted in issue, Windows | Tagged , | 3 Comments