Users of Windows 10 and 11 have discovered a new inetpub folder following the April update.

      Digital Trends

      Windows 10 and 11 users have discovered an unexplained 'inetpub' folder following the installation of Microsoft’s April 2025 updates, according to Bleeping Computer. Commonly linked to the Internet Information Services (IIS) web server, this folder is now showing up on systems that do not have IIS installed. Microsoft has acknowledged that this occurrence is intentional, though they have not provided a comprehensive explanation.

      This unexpected folder is empty and can be located in the root directory of the C: drive, even on systems without IIS. If IIS were installed, it would typically use the inetpub folder for logging, website content, and other server-related files. Therefore, it’s unusual to have this folder without IIS after applying the Windows 11 KB5055523 update or the Windows 10 KB5055518 update. The new inetpub folder is owned by the SYSTEM account, indicating that it was created by an elevated process.

      You need not be concerned about the new inetpub folder affecting your system’s stability or performance. While some users have deleted the folder without facing any problems, Microsoft advised Bleeping Computer that it should remain untouched. Although the folder is likely harmless, it’s wise to heed Microsoft’s guidance and keep it as it is. No new software has been installed alongside the folder’s appearance, so there is no cause for alarm.

      When updating your PC, you typically anticipate useful enhancements, such as a revamped Start Menu, rather than experiencing slowdowns or the addition of unexpected folders. However, if you ever wish to use IIS, you can enable it by pressing the Windows button, typing Windows features, clicking on Turn Windows features on or off, and checking if Internet Information Services is marked. If it is, it means it’s activated. We will just have to wait for Microsoft to clarify the appearance of this folder after the update.

      Judy Sanhz is a writer for Digital Trends focusing on computing news. She has a passion for all operating systems and devices.

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