ArcMap unexpectedly exits during the "Loading Document..." stage on startup without returning an error message.
This can result from an upgrade to Python 2.7.11, which was released on December 12, 2015.
In the newly released version, there is a line in the code that makes the following statement, where 'PyWin_DLLVersionString' now is '2.7-32'.
This statement searches for the registry key, which does not exist:
With the release of Python 2.7.12, the following procedures are not needed if this version of Python is installed. If however, it is not possible to upgrade to version 2.7.12, and version 2.7.11 is installed, the three workarounds listed below are still valid options.
Warning: The instructions below include making changes to essential parts of the operating system. Esri recommends users backup their operating system and files, including the registry, before proceeding. Consult with a qualified computer systems professional, if necessary. Esri cannot guarantee results from incorrect modifications while following these instructions; therefore, exercise extreme caution before proceeding.
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