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Microsoft's April 2025 cumulative Windows update, notably identified as KB5055523 for Windows 11 24H2, has stirred significant discussion in the tech community due to an unexpected and somewhat mysterious change: the automatic creation of an empty folder named "inetpub" on the system drive...
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Microsoft's recent efforts to patch Windows systems against a critical elevation-of-privilege vulnerability, CVE-2025-21204, have introduced an unexpected and somewhat controversial element—a mysterious "inetpub" folder that appears on nearly all updated Windows machines, even those not running...
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The Mysterious “inetpub” Folder: An Unexpected Windows 11 Quirk
Windows 11 users have recently encountered an unexpected twist following the cumulative update KB5055523—a seemingly innocuous yet puzzling folder named “inetpub” appearing on the C drive. This odd discovery, highlighted by multiple...
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Windows updates continue to keep IT professionals and enthusiasts on their toes. The latest April 2025 cumulative update for Windows 11 (KB5055523) and Windows 10 (KB5055518) has introduced a curious new quirk: an empty “inetpub” folder appearing in the root of the C: drive, even on systems...
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The seemingly innocuous "inetpub" folder, recently introduced across Windows 11 systems as part of the April 2025 cumulative update, has quickly evolved from a quiet background fixture to a focal point of security discussion and user concern. Although empty, this folder represents a new layer in...
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Something strange is happening on the C: drive of millions of PCs worldwide, and it’s not a ghost in the machine. If you’ve recently updated your Windows 11 system and discovered an unfamiliar, empty folder named ‘inetpub’ sitting quietly in the corner like a wallflower at a prom, you’re not...
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Microsoft's recent April 2025 patch for Windows introduced a curious and controversial change that has IT administrators and security experts buzzing—a mysterious "inetpub" folder appearing by default on systems, including those not using Internet Information Services (IIS). Far from a mere...
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Microsoft's recent April 2025 Patch Tuesday update for Windows 11—specifically update KB5055523—introduced an unexpected yet purposeful change that has stirred curiosity and concern among users and IT professionals alike: the mysterious creation of an empty folder named inetpub on the system...
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The creation of the inetpub folder on Windows systems by the April 2025 cumulative update has sparked significant discussion in the Windows community for its dual role as a security measure and a potential vulnerability. Historically, the "C:\inetpub" directory is tied to Microsoft's Internet...
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Microsoft’s recent April 2025 patch cycle for Windows 10 and Windows 11 has sparked a wave of both intrigue and concern across the IT community due to the unexpected appearance of the “inetpub” folder on users’ system drives, usually the C: drive. This folder, historically associated with...
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Here is a summary of the original Petri article on the Windows 11 'inetpub' folder security risk:
What happened?
After the April 2025 Patch Tuesday update, a new "inetpub" folder started appearing on Windows 10 and 11 machines.
Microsoft created this folder to help patch a bug (CVE-2025-21204)...
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