How to unprotect m4v files

Written by j.s. copper
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M4V files are video files that are most commonly associated with Apple iTunes. If a file is protected, unauthorised users may be unable to view, open, edit, delete or otherwise access the file. You can change this file protection by adjusting the video's permissions. Windows allows you to configure file permissions on a peruser basis, allowing the administrator to unprotect the file for some or all computer users.

Skill level:
Moderately Easy

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Instructions

  1. 1

    Log in to Windows using an account with administrator rights.

  2. 2

    Locate the M4V file. Right-click the video file, and then select "Properties."

  3. 3

    Open the "Security" tab. Select the user(s) you wish to allow access to, and then click "Edit..."

  4. 4

    Set all listed permissions to "Allow." Click "Apply" followed by "OK."

Tips and warnings

  • This does not remove any DRM (digital rights management) copy protection put in place by Apple to prevent the unauthorised duplication and distribution of movies and TV shows sold through the iTunes Store.

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