[New-bugs-announce] [issue23874] Encrypted MSI fails to install with code 2755

Jason R. Coombs report at bugs.python.org
Sun Apr 5 04:08:27 CEST 2015

New submission from Jason R. Coombs:

When installing Python (3.4.3 or 2.7.9) from an EFS encrypted installer file, the installation proceeds normally through the target selection and feature selection, but then immediately reports "/!\ The system cannot open the device or file specified," and aborts the installation with "The installer has encountered an unexpected error installing this package. This may indicate a problem with the package. The error code is 2755."

Other MSI products install fine when the MSI is encrypted (pandoc, MongoDB), so there appears to be something unique about the Python installer that's failing when the Trusted Installer cannot read the MSI itself. Decrypting the MSI before installing works around the issue.

Environment: Windows 8.1 64-bit with Python 64-bit

components: Installation, Windows
messages: 240099
nosy: jason.coombs, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Encrypted MSI fails to install with code 2755
versions: Python 2.7, Python 3.4

Python tracker <report at bugs.python.org>

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