How to Fix Mfc42.dll Errors
Do not download mfc42.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file that way is a bad idea.
Restore mfc42.dll from the Recycle Bin.
The easiest possible cause of a “missing” mfc42.dll file is that you’ve mistakenly deleted it.
fire off the sfc/ scannow System File Checker commandto replace a missing or corrupt copy of the mfc42.dll file.
Since this DLL file is provided by Microsoft, theSystem File Checkertool should restore it.
Try your best to complete this step.
Obtaining the file from within Windows, if possible, is a likely solution to this error.
Install any available Windows updates.
Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your gear.
The mfc42.dll file could be included in one of those updates.
Run a virus/malware scan of your entire system.
Use System Restore to undo recent system changes.
Reinstall the program that uses the mfc42.dll file.
Update the drivers for hardware devicesthat might be related to mfc42.dll.
The mfc42.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 a free registry cleanerto repair mfc42.dll related issues in the registry.
We rarely recommend the use of registry cleaners (see why in ourRegistry Cleaners FAQ).
A few other solutions for Ubuntu usersare available at Ask Ubuntuif you need them.
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 mfc42.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 mfc42.dll errors persist.
After a clean install of Windows, your DLL problem can only be hardware related.
Need More Help?
In some cases, mfc42.dll errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
There are several ways mfc42.dll errors can show up on your system.
