Are you seeing this error on a specific title or across all of your Blu-ray discs? Automatic HK downloading is disabled or failed.
Inside that folder on your computer, MakeMKV stores _private_data.tar . If this file is corrupted, MakeMKV can't save new keys.
By methodically working through this guide—starting with your local data file, moving to your DNS settings, and finally tackling your router or VPN—you will almost certainly regain the ability to decrypt your Ultra HD Blu-rays. Remember, once you have a stable connection and the keys are downloaded, MakeMKV will continue to work smoothly until your next major network change or new disc release. Happy ripping makemkv automatic hk downloading is disabled or failed upd
The error in MakeMKV occurs when the software cannot download the required Hashed Keys (HK) to decrypt and rip 4K Ultra HD (UHD) Blu-ray discs . While standard Blu-rays use static keys, 4K UHD discs rely on a dynamic public database of hash keys to bypass newer AACS 2.0 protections. When MakeMKV is blocked from reaching these key servers, the decryption process fails completely.
The "Automatic HK" system works best on the latest version of the app. If you are running a version of MakeMKV that is several years old, the hardcoded server URLs might be outdated. Always ensure you are running the latest stable build from the official site. Are you seeing this error on a specific
If HK downloading remains disabled or failed, MakeMKV can still decrypt:
The software’s status bar blinked red. If this file is corrupted, MakeMKV can't save new keys
Aris’s hand hovered over the keyboard.
To prevent the "MakeMKV Automatic HK Downloading is Disabled or Failed" update from occurring in the future, users can:
Before diving into the fixes, it helps to understand what's actually happening. When you insert a 4K UHD disc, MakeMKV needs to know the unique decryption key. It doesn't store these keys itself but automatically downloads an HK (Hash Key) file that contains the keys for thousands of movies.