Searching for "64 Bit Portable" specifically is smart. AutoCAD stopped supporting 32-bit operating systems after AutoCAD 2019. Modern drawings (DWG files) often exceed the 4GB memory limit of 32-bit applications.
: These versions are designed to leave a minimal footprint on the host computer's registry, making them useful for designers who work across multiple workstations. Autocad 64 Bit Portable
: Available for iOS and Android, this allows you to take your drawings to job sites and perform basic edits on tablets or smartphones. Searching for "64 Bit Portable" specifically is smart