[Erro Xamp] Error: Apache shutdown unexpectedly.

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9:06:55 PM  [Apache]     Status change detected: stopped
9:06:55 PM  [Apache]     Error: Apache shutdown unexpectedly.
9:06:55 PM  [Apache]     This may be due to a blocked port, missing dependencies,
9:06:55 PM  [Apache]     improper privileges, a crash, or a shutdown by another method.
9:06:55 PM  [Apache]     Press the Logs button to view error logs and check
9:06:55 PM  [Apache]     the Windows Event Viewer for more clues
9:06:55 PM  [Apache]     If you need more help, copy and post this
9:06:55 PM  [Apache]     entire log window on the forums

Alguem pode me ajudar com este erro? assim que starto o apache dá esse erro