I don't know what else to tell you... Try a reinstall...
Maybe you copied the wrong files...
mysql-5.1.30-win32\data\mysql\ *.* \\all files from this directory
C:\wamp\bin\mysql\mysql5.1.30\data\mysql\ *.* \\ to this directory
In the worst case you can reinstall an older version of mysql.
Left click in system tray on wampserver icon/hover mysql/hover version/click get more ... Downloa
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