App Options Reset to Default EVERY time Inventor reloads
That tells me the person doesn't have the proper permission to write to the Windows registry.
-or-
Something is wrong with the user's Windows profile
-or-
Software in place to reset registry settings.. Unlikely this one but it could be.. 
Mark Lancaster
& Autodesk Services MarketPlace Provider
Autodesk Inventor Certified Professional & not an Autodesk Employee
Likes is much appreciated if the information I have shared is helpful to you and/or others
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