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That does not look like any version of OS X that can run on any Intel Mac.

Go to the Apple Menu, choose About This Mac, and report on the version number.
 
Do NOT change the permissions manually. You have modified permissions without knowing what it does.

You need to repair permissions.

That does not look like any version of OS X that can run on any Intel Mac.

Go to the Apple Menu, choose About This Mac, and report on the version number.

It's 10.4 Tiger (remember those?)

From the creation date, perhaps Santa Rosa MBP.
 
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