ArcGIS 10.8 is massive. The installation files usually come in a large ISO or a zipped archive that, when extracted, consumes a significant amount of space.
: Version 4.5.2 or higher must be installed. Memory : 4 GB minimum; 8 GB or higher recommended. 2. Step-by-Step Installation install arcgis 108
Do not confuse this with ArcGIS Pro . Pro is a modern, 64-bit application. ArcGIS 10.8 is 32-bit. Installing both on the same machine is possible, but they operate independently. ArcGIS 10
Desktop first → Extensions second → Patches third. install arcgis 108