First install chocolatey if you don't have it. Its a package manager for Windows that makes life easier for installing programs quickly.
Then install vlc, handbrake, makemkv from chocolatey.
choco install vlc handbrake makemkv libdvdcss-2 -y
https://duckduckgo.com/?q=make+mkv+beta+key+reddit&ia=web
The most important lines from here are:
cd "\Program Files\Handbrake"
mklink libaacs.dll "C:\Program Files (x86)\MakeMKV\libmmbd64.dll"
mklink libbdplus.dll "C:\Program Files (x86)\MakeMKV\libmmbd64.dll"
cd "\Program Files\VideoLan\VLC"
mklink libaacs.dll "C:\Program Files (x86)\MakeMKV\libmmbd64.dll"
mklink libbdplus.dll "C:\Program Files (x86)\MakeMKV\libmmbd64.dll"
If mklink isn't available, you probably need to run your command prompt as an administrator or
upgrade your windows account to run as a "developer".
First instruction: Here is openjre from 2021: https://builds.openlogic.com/downloadJDK/openlogic-openjdk-jre/8u282-b08/openlogic-openjdk-jre-8u282-b08-windows-x64.msi
https://gist.github.com/peteristhegreat/783f9dc83da6b16dbc2053a5acebf739
While installing be sure to select Set JAVA_HOME optional feature so that VLC can find it.
Scroll down in here to find it:
https://www.videoconverterfactory.com/tips/play-blu-ray-with-vlc.html
Basically you need to drill thru the Preferences to find the Region setting:
VLC > Tools > Preferences > "All" (not "simple") > "Input / Codecs" > "Access modules" > (drill down arrow) > Blu-ray > Region
Pick a different one between A/B/C, save and try the Blu ray menu again.
Lots of places point to this site. It has broken certs, so click thru the "Warning" page to get to it.
It gives you two files: libaccs.dll and the KEYDB.cfg file.
https://vlc-bluray.whoknowsmy.name/
Everytime I tried this approach, it would still complain in the KEYDB.cfg lookup for a valid key in VLC. So it is either out of date or just not working for VLC 3.0 in Q3 2021.
After all is said and done, you can now run blu-ray discs on VLC and make backups on Handbrake.