Unexpected Creation of inetpub Folder in Windows 11 KB5055523 Update
The Windows 11 24H2 KB5055523 update unexpectedly creates an empty C:\inetpub folder on systems without Internet Information Services installed, likely due to a bug that triggers IIS‑related components, and although harmless and removable, Microsoft has not yet commented on the cause.
Recent Windows 11 24H2 update (KB5055523) has caused many users to find a new "inetpub" folder on the system drive, even though Internet Information Services (IIS) is not installed or enabled.
The "inetpub" directory is normally created by IIS to store website files, logs, and configuration data. When IIS is turned on, Windows creates C:\inetpub and a sub‑folder wwwroot for web content.
In this update, the folder appears automatically, likely due to a bug that unintentionally triggers IIS‑related components. The update is marked as a security patch and may contain hidden changes to IIS or related services, causing the folder to be created.
To verify if you are affected, open the system drive (usually C:) and look for an "inetpub" folder at the root. The folder is empty if IIS is not actually hosting any sites.
The folder is harmless and can be safely deleted or ignored. Microsoft has not yet commented on the issue.
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