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How to open .UVM files on Windows

To open .UVM files on Windows, check the file’s source: if it came from a video workflow, try opening it with a media player; if it came from a developer/app bundle, assume it may be an executable and do not run it blindly.

Step-by-step instructions

  1. Check the file’s source: if it came from a video workflow, try opening it with a media player; if it came from a developer/app bundle, assume it may be an executable and do not run it blindly.
  2. Right-click the file → Open with → choose a media player; if it fails, try a video converter to probe the container/codec (do not rename the extension as a “conversion”).
  3. If you suspect it is a UnitVM executable, only open/run it with the intended software from the publisher (and consider using an isolated environment).

Common issues

The .UVM file won’t play in my video player

Some players don’t recognize .UVM or the file may use a codec/container your player doesn’t support.

  1. Confirm it is actually a DECE Mobile Video and not a different .UVM type (such as a UnitVM executable).
  2. Try a different media player or use a converter to detect the underlying container/codec and convert to a more common format.

My system thinks the .UVM file is an application/executable

.UVM is an ambiguous extension; in some cases it refers to a UnitVM executable rather than video.

  1. Do not run it automatically; verify the file’s origin and what it contains before opening.
  2. If you expected a video, ask the sender for confirmation or for the file in a common video format; if you expected an executable, only run it with the intended software from a trusted source.

The file extension association is wrong (opens in the wrong app)

Your OS may be associating .UVM with an unrelated app or a different .UVM meaning.

  1. Change the default app association for .UVM (Open with → Choose another app / Always use this app).
  2. If the file is not a video, avoid forcing it to open in a media player—identify the file type first.

Security note

Because .UVM is ambiguous and can refer to an executable (UnitVM) as well as video, treat unknown .UVM files as potentially unsafe until you confirm what they are.

Back to .UVM extension page