Hello , sorry about your problems. My name is Marco and I will do my best to help you.
First, ensure that VLC is set as the default media player for DVDs. This can sometimes resolve the issue without further adjustments.
-Press Win + I to open the Settings app.
-Click on "Apps".
-Click on "Default apps" on the left sidebar.
-Click on "Choose default apps by file type" at the bottom.
-Scroll through the list of apps, find VLC Media Player, and click on it.
-Click on "Manage" and set VLC as the default for DVD movie playback (usually the file types associated are .vob, .ifo, or the protocol DVD).
- Adjusting AutoPlay settings can help ensure that VLC automatically plays DVDs when inserted or when certain actions are triggered.
-Press Win + R, type control, and press Enter.
-Click on "Hardware and Sound".
-Find and click on "AutoPlay".
-Under "DVDs", choose "Play DVD movie (VLC media player)" from the dropdown menu next to each DVD option.
-Click on "Save" at the bottom.
3.If the above steps don’t resolve the issue, you might need to edit the Windows Registry to associate the "Play" action directly with VLC. This step is more advanced and should be done carefully.
-Press Win + R, type regedit, and press Enter.
-Go to HKEY_CLASSES_ROOT\DVD\shell\play\command.
-Double-click on the default value and change it to the path of VLC's executable, followed by %1. It should look something like "C:\Program Files\VideoLAN\VLC\vlc.exe" %1.
-Close the Registry Editor and restart your computer.
( Important, before making a change in the registry, make a backup, here is how: https://support.microsoft.com/en-gb/topic/how-t... )