Visit Videolan.org, download and install the latest version of VLC media player on your computer.
Click here to download keydb.cfg file and Download aacs.dll 32-bit for 32-bit VLC, and 64-bit file for 64-bit VLC.
Open the File Explorer and Input "%appdata%" in the edit box
Under Folder Options > View tab, then select “show hidden files…”>select “OK” button.
Create a new folder in the App data that is called AACS and paste the downloaded KEYDB.cfg key file in the AACS folder.
Right-Click the Shortcut of VLC media player on the Desktop and Click the "Open file location" to open the vlc directory. And then copy the aacs.dll to the folder of vlc.