mysql won't work

[Melis_34]

I'm having problems with mysql. evrytime I start it gives the same error:
Error: MySQL shutdown unexpectedly.
16:26:25 [mysql] This may be due to a blocked port, missing dependencies,
16:26:25 [mysql] improper privileges, a crash, or a shutdown by another method.
16:26:25 [mysql] Press the Logs button to view error logs and check
16:26:25 [mysql] the Windows Event Viewer for more clues
16:26:25 [mysql] If you need more help, copy and post this
16:26:25 [mysql] entire log window on the forums
could somone help me?