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Category Archives: Software
Windows 10/11: Defender can be deactivated with a simple tool (Defendnot)
[German]Microsoft has built an interface (API) into Windows 10 and Windows 11 that allows manufacturers of antivirus software to disable Microsoft Defender when they install it. Some people (including a blog reader) have now shown how to deactivate Windows Defender … Continue reading
Exchange Online: Can't change Tenant setting (since mid-May 2025)
[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 … Continue reading
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).
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.
Issues with Visual C++ Redistributable and ODBC
[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 … Continue reading
Posted in issue, Software, Windows
Tagged issue, ODBC, Software, VC++ Redistributable
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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 ...
Microsoft Security Update Summary (May 13, 2025)
[German]On May 13, Microsoft released security updates for Windows clients and servers, for Office – as well as for other products. The security updates eliminate 71 vulnerabilities (CVEs), seven of which were classified as 0-day. Five vulnerabilities have already been … Continue reading
Parallels survey: 63 percent of SMEs are looking for a new VDI or DaaS solution
Parallels, active in the field of virtualization and end-user computing (EUC), recently published the results of its 2025 State of Cloud Computing Survey. The study reveals a significant shift in the EUC market, driven largely by small and medium-sized enterprises … Continue reading
Criminal business and malicious AI models on the darknet
[German] Check Point has published its new AI Security Report 2025. In it, the security researchers examine how artificial intelligence is changing the cyber threat landscape. This ranges from generative AI models built specifically for hackers, i.e. GPTs, on the … Continue reading
Microsoft SharePoint Online migrates to new CDN starting June 2025
[German]A quick note for administrators of Microsoft SharePoint Online who have not noticed this. From June 2025, Microsoft will be migrating this service to a new Content Delivery Network (CDN). There will also be a new domain under which Microsoft … Continue reading
Warning: iVentoy 1.0.2 installs obscure certificates and drivers
[German]A short warning to blog readers who use the iVentoy tool to distribute operating system images via a network and a PXE server. There is currently a discussion that the tool (currently version 1.0.2) installs an insecure kernel driver and … Continue reading


