Error: MySQL shutdown unexpectedly. (1 reply)

10:45:51 [mysql] Status change detected: stopped
10:45:51 [mysql] Error: MySQL shutdown unexpectedly.
10:45:51 [mysql] This may be due to a blocked port, missing dependencies,
10:45:51 [mysql] improper privileges, a crash, or a shutdown by another method.
10:45:51 [mysql] Press the Logs button to view error logs and check
10:45:51 [mysql] the Windows Event Viewer for more clues
10:45:51 [mysql] If you need more help, copy and post this
10:45:51 [mysql] entire log window on the forums

why is this, and how to solve it, please help me