Requires command-line comfort. No GUI. Beginners find this intimidating. Method 2: IDM (Internet Download Manager) with Forced M3U8 Grabbing IDM is a commercial Windows tool ($25+). While not designed for ThisVid specifically, its "Advanced Browser Integration" can sometimes grab private streams.
These almost never work for truly private videos. They rely on cached public videos. For a private vault video, they will return a "Cannot access – video is private" error.
yt-dlp -U And accept that every few months, a script will break until the open-source community patches it. Searching for "thisvid private video downloader full" suggests you want a magical executable: paste URL, click "Download," get file. That software does not exist for private ThisVid content.