Installation: Troubleshooting MSI installer with msiexec


Installation: Troubleshooting MSI installer with msiexec



Provide assistance with MSI installation.

Applies To

Windows agent


MSI fails to install when run / double-clicked.

or you get this error

DEBUG: Error 2826: Control Line1 on dialog FatalErrorForm extends beyond the boundaries of the dialog to the right by 3 pixels

The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2826. The arguments are: FatalErrorForm, Line1, to the right

MSI (c) (04:78) [13:43:03:188]: Note: 1: 2262 2: Error 3: -2147287038


Typically, we have found that there are permissions issues.


Disable AV products.

Run MSI installer from the Windows command prompt:

msiexec /i c:\Unitrends_Agentx86.msi /l*v output.txt /quiet

Third-Party Sources


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