Please look at the following Knowledge Base Article
"Unable to install. An error occurred while preparing the installation." when installing an Autodesk...
Also try posting to the following Forum as it is more specific for your needs
Subscription, Installation & Licensing - Autodesk Community
Jay Colcombe
Autodesk Certified Instructor
Revit Architecture & Structure Certified Professional
AutoCAD Certified Professional
B.Sc. Hons Civil & Structural Engineering
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