[German]How can we optimize bulk operations with PowerShell scripts in Microsoft Exchange? With PowerShell v7, Microsoft has offered the possibility of using multi-threading techniques. The Exchange team has dealt with the options in question in a blog post and describes various possibilities, that are not to complex and suitable for PowerShell operators.
[German]A little tip for administrators of Windows systems. Mark Heitbrink has sat down and built a small PowerShell script that checks the Active Directory under Windows for orphaned administrator accounts and cleans the system of such corpses. The PowerShell script can do a few more things.
[German]A little "story from the past of Windows": In Windows 7 (and Windows Server 2008 R2), users had to experience that logging into their user account was very slow if a solid color was used for the desktop's background. After a long time, Microsoft developer Raymond Chen has come out of the closet and revealed the reason.
[German]The security update KB5055528 from April 8, 2025 for Windows 11 23H2, as well as subsequent updates, have caused a new collateral damage according to Microsoft. Systems with Windows 11 23H2 can no longer be updated to Windows 11 24H2 via WSUS when the update is installed because this installation fails with error 0x80240069.
[German]Why is it so difficult for users in everyday corporate life to adhere to the generally known basics of good password hygiene? Tom Haak, CEO of Lywand, a provider of automated security audits for MSSPs and their SME customers, addresses this question on the occasion of World Password Day on May 1.
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[German]It's the absolute worst-case scenario for data protection and a nightmare for companies. The misconfiguration of software exposes millions of screenshots containing extremely confidential data. Happened with the employee monitoring software WorkComposer due to a misconfiguration.
[German]Good news for users of Windows 7 SP1 and possibly Windows Server 2008 R2. There is probably an increasing demand to continue to operate these operating systems, which have long since reached their end-of-life (EOL), securely. ACROS Security has now announced that it will support these Windows versions with 0patch until January 2027.
[German]Microsoft will soon block Microsoft Teams clients that have not been updated for 90 days. On July 1, 2025, however, users who are still using the old Microsoft Teams Classic (1.0) client are threatened with the end. After this date, this client will no longer be available and will no longer work. An update to the Teams New (2.0) client will be required.
[German]I have just come across information about a vulnerability in the Microsoft Telnet server. The vulnerability is said to allow a -Click-NTLM Authentication Bypass. Fortunately, only old systems up to Windows Server 2008 R2 are affected. Telnet should be deactivated an such old Windows servers, in case, it's activated.
[German]A nasty surprise for some clinics and their IT departments. Maintenance technicians from the US provider Oracle unintentionally deleted critical resources during support. As a result, the IT "lights went out" at 45 clinics that were Oracle customers. Oracle Health was no longer running. The clinics had to fiddle with paper and pencil for days. Go to the cloud, they said in IT, you're not responsible there.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
