: Tools like the SolveigMM Video Splitter are specifically designed to join or split WMV files without losing quality. 2. Professional Editing If you want to add music, text, or effects to your "piece":

If you are on Windows, the built-in or Photos apps (Legacy) can do basic trimming. For more creative control:

: This is the current standard video editor for Windows 10 and 11. You can drag your .wmv file in, cut out the "pieces" you don't want, and export the final "piece" as an MP4 (which is more widely compatible than WMV).