Table of Contents
- Should You Delete the Inetpub Folder? Essential Facts Every Windows User Must Know
- What Is the Inetpub Folder?
- Why Was the Inetpub Folder Created Automatically?
- Which Updates Create the Inetpub Folder?
- Should You Delete the Inetpub Folder?
- Do Not Delete
- Security Impact
- What If You Already Deleted the Inetpub Folder?
Should You Delete the Inetpub Folder? Essential Facts Every Windows User Must Know
The appearance of the “inetpub” folder in the root of your C: drive can be confusing, especially if you did not knowingly install any web server features. Here’s a clear breakdown of what the folder is, why it appears, and what you should do about it.
What Is the Inetpub Folder?
The “inetpub” folder is created by Internet Information Services (IIS), a built-in Windows feature that enables users to host and manage websites locally on their computers. IIS has been part of Windows for decades, from early versions like Windows NT to the latest Windows 11 and Windows Server editions. By default, the folder may appear empty or show 0 bytes in size. It is owned by the SYSTEM account, confirming it was created by Windows itself.
Why Was the Inetpub Folder Created Automatically?
- Security Update: Recently, Microsoft released a security update to address a critical vulnerability (CVE-2025-21204) that could allow attackers to gain elevated privileges on your system.
- Automatic Creation: As part of this update, Windows now automatically creates the “inetpub” folder-even if you have never enabled IIS-to strengthen system security and prevent exploitation of the vulnerability.
- Official Guidance: Microsoft explicitly advises users not to delete the folder, as it is integral to the recent security enhancements. This applies whether or not IIS is active on your device.
Which Updates Create the Inetpub Folder?
The following Windows updates are responsible for creating the “inetpub” folder:
- Windows 10: KB5055547, KB5055521, KB5055519, KB5055518
- Windows 11: KB5055528, KB5055523
- Windows Server: KB5055609, KB5055596, KB5055561, KB5055570, KB5055581, KB5055557, KB5055526, KB5055527, KB5055523
- Windows 7 (with extended updates): Also receives this change
Should You Delete the Inetpub Folder?
Do Not Delete
Removing the “inetpub” folder is not recommended. Microsoft has stated that deleting it could compromise your system’s security posture.
Security Impact
The folder’s presence is now part of Windows’ defense against privilege escalation attacks. Keeping it ensures your device remains protected.
What If You Already Deleted the Inetpub Folder?
If you have already removed the folder, you can restore it by enabling the IIS feature:
- Open the Start Menu and search for “Turn Windows Features On or Off.”
- In the dialog, check “Internet Information Services (IIS)” and click OK.
- Restart your computer. The “inetpub” folder will be recreated in the C: drive.
- (Optional) You may disable IIS afterward; the folder will remain for security purposes.
Keeping the “inetpub” folder ensures your Windows device benefits from the latest security protections-giving you greater peace of mind and a safer computing experience.