Autodesk AutoCAD 2016: A Comprehensive Review of the 32-bit and 64-bit Versions

Part 7: Optimizing AutoCAD 2016 After Installation

Other differences between the 32-bit and 64-bit versions include:

The significance of "Firstuploads" for AutoCAD 2016 was threefold:

"Firstuploads" is a third-party uploader, and downloading professional software from unofficial sources carries heavy risks: AutoCAD 2016 Review - Forums, Autodesk

The phrase "Autodesk AutoCAD 2016 32 64 Bit Firstuploads" typically refers to a specific archived or pirated version of the software found on file-sharing sites.