In some cases, dnssd.dll errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
How to Fix Dnssd.dll Errors
Do not download dnssd.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file is a bad idea.
Restore dnssd.dll from the Recycle Bin.
The easiest possible cause of a “missing” dnssd.dll file is that you’ve mistakenly deleted it.
Just see to it it wasn’t really a virus the first time it was deleted!
Run a virus/malware scan of your entire system.
Reinstall the program that uses the dnssd.dll file.
Try your best to complete this step.
For example,completely uninstalland then reinstalliTunesif you see the dnssd.dll error there.
So, in this instance, you’d want to install Bonjour and not reinstall AirPort Utility.
Doing that should wipe the error.
Use System Restore to undo recent system changes.
Update the driversfor hardware devices that might be related to dnssd.dll.
The dnssd.dll file may or may not be related to video cardsthis was just an example.
The key here is to pay very close attention to the context of the error and troubleshoot accordingly.
Test your memoryand thentest your hard drive.
If the hardware fails any of your tests,replace the memoryorreplace the hard driveas soon as possible.
Repair your installation of Windows.
Use afree registry cleanerto repair dnssd.dll related issues in the registry.
Perform a clean installation of Windows.
A clean install of Windows will erase everything from thehard driveand install a fresh copy of Windows.
If none of the steps above correct the dnssd.dll error, this should be your next course of action.
All the information on your hard drive will be erased during a clean install.
Troubleshoot for a hardware problemif any dnssd.dll errors persist.
After a clean install of Windows, your DLL problem can only be hardware related.
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Causes of Dnssd.dll Errors
There are several ways dnssd.dll errors can show up on your system.
Because Apple products use this DLL file, it’s stored in the%programfiles%\iTunesfolder.
