You want to use Autodesk® Inventor™ Reset Utility to reset the local Inventor environment for a Windows® User Account. Damaged local user account settings can impair the normal operation of Autodesk Inventor.
Common symptoms include:
Unable to export AutoCAD™ DWG
Unable to launch add-In
Add-In commands are greyed in the ribbon
Dialog boxes do not appear after launching a command
Import/Export commands do not function
Program crashes when entering add-in workspace
Note:It may be necessary to lower the User Account Control settings to the lowest level and temporarily disable any anti-virus software for the reset activity.
To lower the User Account Control settings:
Browse to Control Panel\All Control Panel Items\User Accounts.
Select "Change User Account Control Settings."
Move the slider to the lowest setting, "Never Notify."
This process will remove all customizations done in the following areas: