Error 1619
This installation package could not be opened. Verify that the package exists and that you can access it.
Windows Installer could not read the file. Usually the download is incomplete, the path is unreachable, or the file is not really an MSI.
What it actually means
The error is about access to the package rather than about its contents. It fires before installation starts, which is why nothing is installed and nothing is rolled back.
How to fix it, in order
Ordered by how often each one is the answer, not by how clever it sounds.
- 01Check the file size. A truncated download is the most common cause, and the file looks normal in Explorer either way.
- 02Verify the hash if the publisher published one. That settles whether the file is intact in a way that eyeballing the size cannot.
- 03Move the package to a local folder. Running an MSI from a network share, a mapped drive or a path with unusual characters frequently produces this.
- 04Shorten the path. Very long paths, and folders with non-ASCII characters, still break some installers.
- 05Confirm it really is an MSI. A renamed EXE or an HTML error page saved with an .msi extension produces exactly this error.
This is where a hash actually earns its keep
Error 1619 usually means the bytes are wrong. Comparing the SHA-256 against the publisher's published value tells you in seconds whether to re-download or look elsewhere, instead of guessing.
Common questions
- What causes error 1619?
- Windows Installer could not open the package: normally an incomplete download, an unreachable path such as a network share, or a file that is not actually an MSI. Verify the file hash and run it from a local folder.
Before you retry the installer
If the package came from anywhere other than the publisher, confirm it is the file they actually shipped. Check its SHA-256 against our index, which settles in seconds whether you are debugging an installer or a damaged download.