Avoid third-party "full download" sites offering "cracked" or "free" versions. These files often contain malware and lack the necessary iLok authorization required to launch the software. System Requirements and Compatibility
This version introduced several performance-oriented updates: Pro Tools 12 System Requirements - Knowledge Base
The only secure way to download Pro Tools 12.8.3 is through your Avid Master Account .
High Sierra (10.13.2), Sierra (10.12.6), El Capitan (10.11.6) Intel Core i5 or higher Memory (RAM) 16GB minimum (32GB+ recommended) Disk Space 15GB for installation iLok iLok 2 or iLok 3 USB key Key Features of v12.8.3