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Installation Error: 0x80070643 - Fatal error during Installation


You will see this error during installation of eWay-CRM: 0x80070643 - Fatal error during Installation.

Log contains this error:

Error 0x80070643: Failed to install MSI package.


All versions of eWay-CRM




Option 1: Invalid Scheduled Task in Windows

At first, try whether the issue is not caused by invalid scheduled task in Windows - Error During Installation Caused by Invalid Scheduled Task in Windows.

Option 2: Error of rundll32.exe

For more information about the error, you need to run eWay-CRM installation setup.msi or setup64.msi file with verbose loging. Installation files during update are available on this path: %USERPROFILE%\.eWay-CRM\Updates (formerly APPDATA\Memos\eWay\Updates)

msiexec /i "setup.msi" /l*v "SetupDebug.log" 

After the installation finishes with failure, you will find this error in SetupDebug.log file you just generated:

SFXCA: Failed to create new CA process via RUNDLL32. Error code: 2
CustomAction CheckRunningProcesses returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)

The issue is caused by missing or corrupted system file rundll32.exe file that is in the C:\Windows\SysWOW64 folder for 32-bit installation or in the C:\Windows\System32 for 64-bit installation or 32-bit system.

You may try to repair it by running command line as administrator in Microsoft Windows and running this command:

sfc /scannow

In most cases, you will need to find the same version of rundll32.exe file on other computer and copy it to computer with error.