Troubleshooting Navisworks when it doesn’t start up and no error report created

Happy New Year to you all! I thought I'd start this year off with an article to help troubleshoot one of the rarer but most annoying problems some people have with Navisworks.

Most of the time Navisworks closes unexpectedly, a dialog appears asking you to send some details about what happened and an error report, to us at Autodesk. These are then used to improve the product so we strongly recommend you provide details whenever this happens of what you were doing at the point of the crash.

However there are occasions, particularly on start-up where an error report is not created. This blog post should help run through a series of steps to resolve the problem, or at least help us in support to narrow down the issue.

1. If this is a Network installation, you should be running the latest License Manager 11.9. http://forums.autodesk.com/t5/Installation-Licensing/Autodesk-Network-License-Tools-11-9/td-p/2988862
2. Delete the Cascadeinfo.cas file. A new one will be created when you start Navisworks again.
   On Windows XP:
   C:\Documents and Settings\All Users\Application Data\Autodesk\Adlm
   On Windows Vista and Windows 7:
   C:\ProgramData\Autodesk\Adlm
3. Delete your Navisworks user profiles under
   C:\Users\**YOUR USERID**\AppData\Roaming\
   C:\Users\All Users\Autodesk Navisworks Manage 2012
4. A Reinstall of Navisworks (not a repair) through 'Add or Remove Programs' in the Control Panel and restart the machine as an administrator.
5. Turn off Hardware Acceleration in the Navisworks Options > Interface > Display, you can access these options through Programs > Autodesk > Navisworks Manage/Simulate 2012 > Options Editor.
   If this resolves the problem then the Graphics Card/drivers aren't interacting well with Navisworks. A first step here would be to update the graphics card drivers from the manufacturer's website and re-enable Hardware Acceleration.

If Navisworks still doesn't start after trying these steps then please post on the Navisworks forum or log a support request through the Subscription Center if you have up to date subscription explaining the steps you have taken, details of the machine this happens on, any error messages and if anything has changed on the machine since this last worked.