A clean environment prevents installation conflicts with older software versions or security protocols.
If you are a solo freelancer with a legacy license, it is possible—but block the executable from accessing the internet via Windows Firewall to prevent Autodesk Desktop Licensing Service from forcing a compliance check that will hang.
Which are you currently using?
After installation, you must activate your copy of Inventor 2020 to use it beyond a trial period.
This is the simplest method for users with an active internet connection:
Follow these steps to download and install the software from your Autodesk Account Access Products : Log in and navigate to "Products and Services". Select Version Inventor Professional , select the version from the dropdown menu, and choose your language. Download Method
Choose whether to install specific translators, DWG TrueView, or the Inventor Content Center Libraries (Desktop Content).