CAD tip # 6686:

Question CAD
% platform category

MSI Error 1325. [username] is not a valid short file name

AutoCAD or other Autodesk product fails on installation or on the first run with the Error 1325.

This is a MSI installer error appearing on user accounts with names containing a dot (".") or with names longer than 11 characters. Users' login names probably have a period in their usernames - i.e.: "first.last".

What to do:

Install your CAD product in the Administrator account and then copy the Registry entries (HKEY_CURRENT_USER\Software\Autodesk) and the folders c:\Users\[username]\AppData\Local\Autodesk and c:\Users\[username]\AppData\Roaming\Autodesk.

ACADInventorRevitmax

* CAD

20.5.2009 39752×

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Product Design Collection

AEC Collection

applies to: AutoCAD · Inventor · Revit · 3ds Max ·

See also:
Tip 13539:	Revit 2023.1 shows "Twinmotion is not installed"
Tip 13263:	Error when renaming assembly files in Design Assistant 2022.
Tip 12605:	Script error (utag) when trying to log-in with your Autodesk ID.
Tip 11863:	You cannot install this product on the current operating system.
Tip 11854:	iLogic error in Inventor 2019: invocation of constructor threw an exception

Selected tip: How to transfer your Plot style table to Excel?

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