You cannot "reset" a trial on the same machine once it has expired.

Directly downloading a is no longer officially supported by Autodesk. Autodesk typically only provides trial downloads for the latest version of its software.

: If you need 2020 specifically, sign in to your Autodesk Account. Under All Products and Services , you can often find previous versions. If you don't have a subscription, the trial usually defaults to the newest release.