Computer won't boot up, says\windows\system32\config\system may be missing or corupt, asks for start up disc and press 'r' , I

littlemom3

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Feb 2, 2014
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This is a friend needing help. Of course they can't search for solution so I am trying to help them.
Windows 7 won't reboot
comes up\windows\system32\config\system may be missing or corrupt
Then states to use restore disc and hit 'r' to restore
He doesn't have his disc. Can anything else be done to reboot?