In some cases, mapi32.dll errors could indicate aregistryproblem, a virus or malware infection, or even ahardwarefailure.
How to Fix Mapi32.dll Errors
Do not download mapi32.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file that way is a bad idea.
Restore mapi32.dll from the Recycle Bin.
The easiest possible cause of a “missing” mapi32.dll file is that you’ve mistakenly deleted it.
Rename the msmapi32.dll file if you get this DLL error after installing or reinstalling a Microsoft Office program.
Search your setup for msmapi32.dll (not mapi32.dll).
Try your best to complete this step, but only if you see the error when using Outlook.
Run a virus/malware scan of your entire system.
Use System Restore to undo recent system changes.
Reinstall the programthat uses the mapi32.dll file.
Update the driversfor hardware devices that might be related to mapi32.dll.
spin up the sfc /scannow System File Checker commandto replace a missing or corrupt copy of the mapi32.dll file.
Since this DLL file is provided by Microsoft,System File Checkermight restore it.
Install any available Windows updates.
Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your system.
The mapi32.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 drive.
Repair your installation of Windows.
Use a free registry cleanerto repair mapi32.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 the hard drive and install a fresh copy of Windows.
If none of the steps above correct the mapi32.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 mapi32.dll errors persist.
After a clean installation of Windows, your DLL problem can only be hardware related.
Causes of Mapi32.dll Errors
There are several ways mapi32.dll errors can show up on your machine.
