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Tag Archives: Windows Server 2025
Windows Server 2025: Bug in DC with schema master role confirmed
[German]There is a bug that's causing problems with Windows Server 2025 when it is used as a domain controller (DC) and a schema master role is used. In mid-August 2025, I reported that the bug leads to duplicate entries. Microsoft … Continue reading
Windows 11 24H2/Server 2025: Updates KB5066683 and KB5066687
[German]A brief update from the end of September 2025. Microsoft has released two updates for setup and recovery for Windows 11 24H2 and Windows Server 2025. There is a dynamic update, KB5066683, which can be downloaded during the setup of … Continue reading
Windows Server 2025 as DC: Avoid in mixed environments (RC4 issue)
[German]Today, another post for domain controller administrators. If anyone is thinking about adding a Windows Server 2025 as a domain controller (DC) in a mixed environment, don't do it. Adding the new Windows Server 2025 DC to an existing structure … Continue reading
Windows 11 24H2/Windows Server 2025 is not receiving updates from WSUS
[German]I'm posting a problem on the blog that was brought to my attention by a reader. It concerns WSUS (Windows Services Update Server), which is also to be used for update management for Windows Server 2025. An administrator contacted me … Continue reading
Windows 11/Server 2025: Updates for Setup and Recovery (Aug. 2025)
[German]At the end of August 2025, Microsoft released OOBE updates KB5065378 and KB5064097 for Windows 11 24H2 (and Windows Server 2025). In addition, the setup and recovery updates KB5064080 and KB5064081 for Windows 11 24H2 and Windows Server 2025 were … Continue reading
Windows Server 2025: Bug in the schema master role of the DC
[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 … Continue reading
Windows Server 2025: HPE ProLiant DL325 server drops IRQL_NOT_LESS_OR_EQUAL BSOD after July 2025 update
[German]I'm going to include a post here in the blog that a blog reader described to me a few days ago. An HPE ProLiant DL325 Gen10 Plus v2 running Windows Server 2025 triggers IRQL_NOT_LESS_OR_EQUAL blue screens (stop code 0x0000000a) in … Continue reading
Posted in issue, Security, Update, Windows
Tagged issue, Security, Update, Windows Server 2025
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Windows 11 24H2/Server 2025: PowerShell 2.0 will be removed
Microsoft has already published the article PowerShell 2.0 removal from Windows on August 11, 2025. Windows PowerShell 2.0, introduced with Windows 7, was already discontinued in 2017 but remained in Windows for compatibility reasons. It will now be removed from … Continue reading
Windows 11 24H2: KIR fix for WSUS installation error 0x80240069 with update KB5063878
[German]Update KB5063878 for Windows 11 24H2 from August 12, 2025, causes issues when installing via WSUS. It crashes with error code 0x80240069. Microsoft has now confirmed this issue in a support article dated August 14, 2025, and offers a KIR … Continue reading
Posted in issue, Update, Windows
Tagged issue, Patchday 8.2025, Update, Windows 11 24H2, Windows Server 2025
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Windows Server 2025: Authentication Bypass with Golden dMSA
[German]Delegated Managed Service Accounts (dMSA) were newly introduced in Windows Server 2025. Their design enables serious attacks on Managed Service Accounts and Active Directory resources. Semperis-Research has now developed Golden dMSA, a tool that contains the logic of the attack … Continue reading