mdnsNSP.dll - This module is blocked from loading into the Local Security Authority

Have you had any issues with iTunes after uninstalling Bonjour?

I get this same issue when I had to move to iTunes from Apple and not the Microsoft app store when it bricked my iPhone updating to iOS 18.2. I’ve been ignoring the LSA message when it comes up every 2/3 days (actually get 2 identical messages at once). It does give the option to not show the message again but I don’t check it because I’d like to know if this will get fixed and if it is okay to keep ignoring the message.

Thank you for the details. I think this is beyond my capabilities (and comprehension). I’ll just keep Bonjour installed and deal with the LSA warnings for now. I can hide the warnings if I get fed up with them.

This issue doesn’t seem to be impacting iTunes usability and that’s better than the Windows Store version that bricks devices during iOS updates and doesn’t allow you to restore. I’m so frustrated with this whole deal and the many hours I’ve spent and lost on this issue.

I have been having the same problems. To use GRBForHim's terminology iTunes from the MS Store also bricked my iPhone whist updating to iOS 18.2.1 and it would not let me restore my phone. After reading several online articles I uninstalled iTunes and installed the Apple Devices app. I did a forced restart on my phone which then displayed the symbol telling me to plug the phone into my computer. This I did after starting the Apple Devices app. This app fortunately picked up on the Backup on my computer created by iTunes and after selecting Update and waiting quite a while my phone was back to somewhere near where it was before the original attempted update via iTunes. Several apps required a re-registration with the provider but overall I was relieved that I did not have to rack my brains to recall all the apps I had got used to using.

However, as turingtest2 says I was not impressed by with the Apple Devices app. In particular it did not enable me re-install the many Podcasts I had already downloaded onto my computer. As I had read that the Apple Devices app and iTunes will not sit along side one another I uninstalled the former and reinstalled the latter but this time the version from Apple's website.

This enabled me put the Podcasts back on my phone but I am now getting the message from Microsoft's Program Compatibility Assistant as per the head of this thread. I will live with this for a while at least.

I have also had warnings about disk space on my computer and I have traced this to the fact that the newly installed iTunes from Apple stores the backups from my phone in a different location to iTunes from the MS Store.

I have posted this in the hope that the history of my experience may be of help to others.

This is a user-to-user forum. No one here (with VERY limited exceptions) works for Apple If you want Apple to listen, use this link:

Product Feedback - Apple

Also see:

Security implications of Bonjour protocol for developers and administrators - Apple Support

Bonjour hasn't been updated since 2015. Apple would probably like you to install iTunes from the Microsoft Store, or use Apple Music, TV & Devices instead. (Don't, they're not a good replacement).

tt2

You can extract the Bonjour .msi file from an iTunes installer so you can install that component independently should you wish. See the bottom of Troubleshooting issues with iTunes for Windows updates - Apple Community for links to a number of versions of the iTunes installer and in particular the section on Missing MSI errors.

tt2

Do you use AirPlay or sync over Wi-Fi? If not then I don't think you need Bonjour at all.

tt2

uninstalled itunes and bonjour, and got itunes from the apple website instead, warning has gone and itunes now recognizes phone, so all good. GL to you.

exact same thing happened to me yesterday, repair shop had to reset to factory, phone fine on 18.2 now but is no longer recognized by itunes (from MS store), works fine on my wifes laptop (with itunes from MS store), havent tried dling form apple direct, but today i get the same popup, wish there was an easy alternative to get audiobooks onto my phone from PC.

Thanks for the info. If there happens to be issues with it being uninstalled, how do you reinstall? Do you have to uninstall iTunes and then reinstall iTunes again to get it back?