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Step 1
Locate iMovie (some versions are named "iMovie HD"), which should be in the "Applications" folder unless you deliberately moved it from some reason (which Apple does not recommend).
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Step 2
Highlight the iMovie application in the "Applications" folder with a single click.
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Step 3
Delete the application with your preferred method, by dragging it manually to the "Trash," right- or Control-clicking on it and selecting "Move to Trash" or using the keyboard (Cmd-Delete).
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Step 4
Empty the "Trash" by selecting "Empty Trash" from the "Finder" menu or right-click (Control-click) on the "Trash" icon in the "Dock" and select "Empty Trash" from the pop-up window (it will be the only option).
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Step 5
Consider deleting preference files if removing and reinstalling iMovie does not solve the issues that prompted its removal. These are located in certain sub-folders within the "Library" folders on your Mac, but if you are not familiar with these locations you should consult the Apple support page for iMovies (see Resources below).
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Step 6
Consult the Apple support page for iMovie should you encounter any unforeseen difficulties following your decision to remove and replace the software (see Resources below).










