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CAD tip CAD tip # 6686:

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Q - question

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

A - answer 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.

100% *  CAD 
20.5.2009    22940x  
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applies to: AutoCAD · Inventor · Revit · 3ds Max ·

See also:
Tip 11145:AutoCAD: Customization file load failed.
Tip 10589:Fusion 360 doesn't create a drawing, error Unknown command "0.0000,1.0000,0.0000"
Tip 10557:Cannot change TAG in Plant 3D.
Tip 10414:FATAL ERROR when starting AutoCAD 2016 - Access Violation Reading 0x0018.
Tip 10274:Installation or update problem in Autodesk Fusion 360 (locked).

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