LosslessCut is inherently a portable application on Windows; the standard download from the official website is a standalone folder that requires no installation. How to Download and Run (Portable) Download the Archive : Visit the GitHub Releases page or the SourceForge mirror and download the LosslessCut-win-x64.7z Extract the Files : Use a tool like

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In short: the portable version turns any computer into a lossless video trimmer instantly.

If you want, I can fetch the latest release filename and checksum for your OS.