I keep trying to run both Navisworks Manage and Freedom 2013 and it will not open. I have attached a copy of the error messages I get when trying to run both. Does anyone know how to resolve this? Do I simply need some sort of update?
From your screenshots I guess you are running Windows 8 or 8.1.
From the "system requirements" page http://knowledge.autodesk.com/support/navisworks-products/troubleshooting/caas/sfdcarticles/sfdcarti... you can see that the 2013 versions do not mention Windows 8. Only Win XP up to Win 7.
Windows 8 is supported from version 2014 onwards.
So my advice would be to install the Freedom 2015 and the Manage 2015 (30-day trial) from the download pages to see if that versions are running.
That error suggests that part of the licensing system is corrupted or missing.
This could be operating-system compatibility, or it could just be that your install has got damaged somehow...
Running a repair or reinstall using the original installer might help.
Do you have any other Autodesk products from different years installed on that machine?
Ian