This error stops MakeMKV from decrypting newer Blu-ray discs. It happens when the software cannot download the necessary Hashed Keys (HK) required to bypass advanced copy protections. Understanding the Error: What are Hashed Keys?
Before exploring more complex causes, ensure that the basic configuration is correct.
Region/Drive issues
The most effective way to bypass ISP-level or geographic blocking is to use a . Automatic HK download disabled or failed - www.makemkv.com makemkv automatic hk downloading is disabled or failed
Find the public MakeMKV key directory (frequently shared and updated by enthusiasts on the official MakeMKV forums).
Sometimes, the setting required for automatic downloads is simply turned off within the program interface. Open . Click on View in the top menu bar and select Preferences . Navigate to the General tab.
Often, the feature is simply turned off within the software preferences. Open MakeMKV. Click on in the top menu bar and select Preferences . Navigate to the General tab. This error stops MakeMKV from decrypting newer Blu-ray discs
Visit the MakeMKV forums or trusted community repositories to find the _keys.db or the latest hashed key list.
To decode and rip a protected Blu-ray or 4K UHD disc, MakeMKV requires a unique decryption key. These keys are stored in a file called the "Hashed Keys" (HK), which the software automatically downloads from an online server when needed.
Aggressive security software often flags MakeMKV's background network requests as suspicious, blocking the connection to the HK server. Before exploring more complex causes, ensure that the
UHD Blu-ray discs use advanced AACS2 protection. To decrypt and rip these discs, MakeMKV needs a specific key file that matches your exact disc version.
The MakeMKV community actively maintains text files containing thousands of latest hashed keys.