XAMPP, v3.2.1 MySQL shutdown unexpectedly

[gintare]

I have installed XAMPP on windows 7, disk C. It was working.
This morning i have additionally installed Microsoft Net. Framework 4.
After this Apache shut down and i could not run it. MySQL was running.
I have uninstalled XAMPP, restarted computer and installed XAMPP again to C:/xampp.

Now things goes oppositely. Apache is running. My SQL shutsdown unexpectedly.

how to solve the following error from mysql_error_log:
6:46:21 PM [mysql] Problem detected!
6:46:21 PM [mysql] Port 3306 in use by ""C:\Program Files (x86)\Zend\MySQL55\bin\mysqld" --defaults-file="C:\Program Files (x86)\Zend\MySQL55\my.ini" MySQL_ZendServer55"!
6:46:21 PM [mysql] MySQL WILL NOT start without the configured ports free!
6:46:21 PM [mysql] You need to uninstall/disable/reconfigure the blocking application
6:46:21 PM [mysql] or reconfigure MySQL and the Control Panel to listen on a different port