Click and try launching the utility again.
As a last resort, you may need to restore your system to a previous state.
If you tell me you see this error (e.g., popup, Event Viewer, command output), I can give you a precise step-by-step fix. ihv gui mui 64 access denied
This file is often associated with driver components (like those from Intel or Realtek). If the error persists, try downloading the latest driver package directly from the manufacturer's website rather than using a third-party update tool or an older installation disc.
If the error occurs during a driver update, the installer needs elevated permissions. Locate the driver setup file. Right-click on the .exe file. Select . 2. Take Ownership of the Affected File/Folder Click and try launching the utility again
Third-party companies (such as Intel, Realtek, Broadcom, or NVIDIA) that create components and write the drivers to interface with Windows. In networking contexts, Microsoft uses an architecture called the Native 802.11 IHV UI Extensions to let vendors inject custom configuration tabs directly into Windows network menus.
Corrupted software or drivers can cause access denied errors. This file is often associated with driver components
dir /s C:\ihv*ui*.mui
Windows files (often ending in .mui ) that allow the software to display text in different languages.
In rare cases, the error appears because the file is a leftover from an old, uninstalled driver. If you no longer use the associated hardware (e.g., you switched from Wi-Fi to Ethernet, or removed a Killer network card), you can safely:
This is the most frequently recommended fix by Microsoft and Intel support and is highly likely to resolve the issue.