I am trying to uninstall ArcGIS 10.3.1 for Desktop from Windows 7 SP1 using Uninstall a program and I am receiving an error message (pictured below):
Error 1325. EsriPyFldr is not a valid short file name.
The error message dialog appears just after:
Computing space requirements
seems to complete.
If anyone else has encountered this, then have you been able to find a way to get past it and uninstall ArcGIS 10.3.1 for Desktop?
My machine has what I would call a vanilla install of ArcGIS 10.3.1 for Desktop and ArcGIS Pro 1.1.1 so there are Python versions 2.7.8 and 3.4.1 as a result. ArcGIS Earth Beta is also on the machine.
I have made a posting on the same issue to https://geonet.esri.com/message/575655#575655
After running this utility (https://support.microsoft.com/en-us/mats/program_install_and_uninstall) unsuccessfully (it hung for two hours before I killed it) the error message when trying to uninstall shifted to:
This action is only valid for products that are currently installed
ArcMap 10.3.1 continues to start fine and doing
wmic product where "Vendor like '%Environmental Systems Research Institute%'" get Name, Version, InstallDate, InstallLocation in a DOS window (at the suggestion of @MattWilkie) reports only the presence of Python 3.4.1 for ArcGIS Pro, ArcGIS Pro and ArcGIS Earth on my machine.
Best Answer
I was also getting the error 1325 when trying to uninstall ArcGIS Desktop 10.3.1. The fix was to remove a couple of CD/DVD (virtual) drives from the system. I was led to this solution by the posts above.