Recently, many users have asked what is mDNSResponder.exe?
Many users report that mDNSResponder.exe affects the efficiency of their system.
If you are one of them, dont worry, this post fromMiniToolintroduces some information about mDNSResponder.exe for you.
![]()
What Is MDNSResponder.exe
What is mDNSResponder.exe?
MDNSResponder is the core part of the Bonjour protocol.
Bonjour mDNSResponder.exe not only supports iTunes sharing but also helps to populate the shared machine list in the Finder.

Bonjour also fills in the photo-sharing, Airplay compatible unit list, and quickly finds printers.
This post shows you a 3-step guide on how to transfer iTunes library to another Windows 10 computer.
It is a Windows to Windows guide.
If you are using aMac firewall, you will see a pop-up window about mDNSResponder.
In most cases, you should not notice that mDNSResponder consumes a lot of CPU or memory.
If you do, in most cases, restarting your Mac should solve the problem.
Here is how to uninstall it.
Step 2:In thePrograms and Featureswindow, navigate tomDNSResponder.exe.
Then right-click it and chooseUninstall.
Then you have uninstalled mDNSResponder.exe successfully.
Besides, it’s possible for you to try another method to remove it.
you could follow the instructions below.
Step 1:You should openTask Manageragain by pressing theCtrl + Shift + Esckeys simultaneously.
Step 3:Select it and then clickEnd Taskto terminate or stop the running process of the mDNSResponder.exe.
After terminating the running processes of the mDNSResponder.exe on your setup, you will remove the mDNSResponder.exe successfully.
Final Words
After you read this post, you may know the information on mDNSResponder.exe.
Hope this post will be very helpful for you.