Hello JenJellybean and welcome to the Autodesk community!
It looks like you are getting a message saying your product is already installed.
For general assistance with this error, please refer to
this thread.
If you are installing an Autodesk software product with a BIM 360 Add-in, please visit
this page.
If you are installing an Autodesk 2015 suite, please visit
this page.
For help with removing products from your system, please visit
Performing a Clean Uninstall and
Removing All Products from a Windows System.
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