Mapi32.dll is a Windows Messaging Application Programming Interface that enables Windows to perform various email functions and launch messaging programs like Microsoft Outlook and Microsoft Office. The inability of the interface to execute email functions properly results in the Mapi32.dll Outlook Error.
This error occurs mostly when you are attempting to upgrade the operating system to a new version.
Error CausesThe common causes of the Mapi32.dll Outlook Error during the OS upgrade are:
The Mapi32.dll Outlook Error message is displayed in either of the following forms:
So, what if you experience this issue and how do you fix it? Well, first there is no need to panic as Microsoft has recognized this issue and provided adequate solutions to fix this problem in no time.
However, to ensure the Mapi32.dll Outlook error is a quick fix, you must first understand the cause of the issue and the message displayed on the screen.
A word of advice for computer users is to scan for viruses with an antivirus program or a registry cleaner regularly to prevent the Mapi32.dll Outlook error from occurring in the first place. Viruses often latch onto .dll files and corrupt them.
It’s always best to have a forward-looking approach.

Error Causes
Error Causes“Windows could not configure one or more system components. To install Windows restart the computer with error code 0xc1900101-0x30018.”When you check on the Windows 10 rollback log, you will see a part with the “iisetup.exe” that’s related to the abort. Usually, the upgrade process completes over 50% and gets stuck and then rolls back later on and generates the error logs. This kind of error, in most cases, appears during the upgrade of Windows 10 and is related with the Internet Information Services or IIS in Windows 10. For some unknown reason, it restricts the installation or the upgrade which causes the error to appear. To fix the “Windows could not configure one or more system components” error, you can try to remove the IIS from the Windows Features or rename the “inetsrv” folder. You could also move all the folders related to IIS to another drive. For more details, refer to the options provided below.
netsh int ip reset
Error CausesError code 0x80070002 is a Windows Update error code. It occurs due to corruption errors which result when missing files in Windows Update prevent users from accessing updates on their system. It affects Windows 10 users and presents similar symptoms as error code 0x80070003, another Windows Update error. These symptoms include the following: