Issue: a new instance of Inventor is starting
1. disable UAC (User Account Control)
-Control Panel\All Control Panel Items\User Accounts - UserAccountControlSettings -- Never notify
2. Delete registry information from current Inventor version.
-Open the registry
-Make copy of the following tree (export as *.reg file):
-delete all the subfolders in from HKEY_CURRENT_USER\Software\Autodesk\Inventor but leave the (Default) String (Type REG_SZ) in the root
3. Reregister Inventor:
-Login in Windows with a local Administrator and open Inventor
-There is a message asking for reregistering Inventor. Say yes.
- In the registry there should be now underneath HKEY_CURRENT_USER\Software\Autodesk\Inventor\Current Version the current registry information.
Now the issue should be solved and if opening an Inventor file from Vault no new inventor instance should startup.