Bonjour 3.1.0.1 For Windows ⇒

It runs, but with caveats. Microsoft's security features like Core Isolation and Hypervisor-Protected Code Integrity (HVCI) may block the older unsigned driver components. You may need to disable Memory Integrity to install it, which is not recommended for security.

If the service crashes repeatedly, registry corruption might be the cause. A clean reinstallation usually fixes this. How to Uninstall Bonjour 3.1.0.1 bonjour 3.1.0.1 for windows

Bonjour may be hidden or not appear in the list. It runs, but with caveats

This version includes solid support for IPv6 addressing. As networks transition away from IPv4, Bonjour’s ability to resolve hostname.local to an IPv6 link-local address ensures compatibility with modern network hardware and reduces IP address conflicts. If the service crashes repeatedly, registry corruption might

Windows Defender Firewall may block Bonjour from scanning the network.

Apple sometimes offers a standalone Bonjour for Windows installer (often included in the Bonjour SDK), though upgrading via Apple Software Update or reinstalling iTunes is generally recommended for the 3.1.0.1 version. Managing the Bonjour Service

However, users on . By default, Windows 11 includes a feature called “Local Security Authority (LSA) protection,” which can block older Bonjour components from loading. In some cases, even version 3.1.0.1 is blocked by the operating system’s default security settings. Fortunately, this can be mitigated by upgrading the Bonjour service via Windows Package Manager ( winget ) or by adjusting the LSA protection settings.