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With the version spoof active, the legacy software will now install without generating block errors. Mount your . install pro tools 103 10 on high sierra
After successfully installing Pro Tools 10.3.10 on High Sierra, you should be aware of the limitations and potential issues you may encounter. Navigate to Contents > Packages
Pro Tools 10 outputs audio to BlackHole, which passes it to your modern interface. Latency will be high—this is for mixing, not tracking. After successfully installing Pro Tools 10
Set the count to one less than your maximum available cores (e.g., if you have an 8-core CPU, select 7 Processors ). This keeps one core dedicated to handling background macOS High Sierra system operations. Set the CPU Usage Limit to 85% or 90% . Managing Plugins
Avid explicitly notes that the uninstaller for Pro Tools 10.3.10 and earlier will not work on macOS 10.13 High Sierra. If you need to remove Pro Tools from your system, you will need to manually delete the application and its associated files.