How to reinstall an app?

if I install an app by mac app store, then I delete it.
How to reinstall that app? in the mac app store, the status is still installed. I can not reinstall it.

Mac OS X (10.6.6)

Posted on Jan 14, 2011 6:30 PM

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33 replies

Jan 28, 2013 4:32 AM in response to Aerke

Did you remember to delete the "Preferences" of an app? For example, I wanted to reinstall Call Of Duty 4. First I deleted the icon, then the Application Support, and then the Preferences (/library/preferences). It worked after that. Im pretty sure this is what the App store looks for when deciding whether the app is there or not. I might be wrong....

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How to reinstall an app?

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