What does Windows error code 1619 (ERROR_INSTALL_PACKAGE_OPEN_FAILED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The specified installation package could not be opened by Windows Installer.

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ERROR_INSTALL_ALREADY_RUNNING	ERROR_INSTALL_PACKAGE_INVALID

ERROR_INSTALL_PACKAGE_OPEN_FAILED

ERROR_INSTALL_PACKAGE_OPEN_FAILED means that Windows Installer could not open the requested package. The cause can be a missing source, inaccessible location, or a file that is not usable as the intended MSI package.

What to check

Verify the exact path, file availability, and read access in the security context that starts the installer.
For a deployment share or downloaded package, confirm the content was fully obtained before launching it.
Keep the package version and its source URL or distribution path in the installer log for repeatable diagnosis.

Microsoft: Windows Installer error codes · Microsoft: MsiOpenPackageEx

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