In some cases, pdh.dll errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
How to Fix Pdh.dll Errors
Do not download pdh.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file like that is a bad idea.
Restore pdh.dll from the Recycle Bin.
The easiest possible cause of a “missing” pdh.dll file is that you’ve mistakenly deleted it.
Use System Restore to undo recent system changes.
trigger the sfc /scannow System File Checker commandto replace a missing or corrupt copy of the pdh.dll file.
Since this DLL file is provided by Microsoft,System File Checkershould restore it.
Run a virus/malware scan of your entire system.
Reinstall the program that uses the pdh.dll file.
If the error takes place if you use a particular program, reinstalling the program should replace the file.
Update the drivers for hardware devicesthat might be related to pdh.dll.
The pdh.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.
Install any available Windows updates.
Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your system.
The pdh.dll file could be included in one of those updates.
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 a free registry cleanerto repair pdh.dll related issues in the registry.
We rarely recommend the use of registry cleaners.
Perform a clean installation of Windows.
This will erase everything from thehard driveand install a fresh copy of Windows.
If none of the steps above correct the pdh.dll error, this should be your next course of action.
All the information on your hard drive will be erased during this step.
Troubleshoot for a hardware problemif any pdh.dll errors persist.
After a clean installation of Windows, your DLL problem can only be hardware related.
Need More Help?
Causes of Pdh.dll Errors
There are several ways pdh.dll errors can show up on your box.
