: If you receive a "sufficient permissions" error when applying settings, it usually indicates a hardware or OS limitation that purchasing a Pro license will not fix. Where to Purchase You can buy a legitimate ParkControl Pro Key directly from the Bitsum Store Comparison: Free vs. Pro Free Version Pro Version CPU Core Parking Tweaks Frequency Scaling Control Bitsum Highest Performance Plan Dynamic Boost (Automation) Not Included manually configure core parking settings without the Pro version? ParkControl – Tweak CPU Core Parking and More