Hai, i am new using fedena and yesterday i had just installed it on my standalone comp. I already have XAMPP on my comp and the password for root is empty (not using password), but when i installed Fedena using the 1-click installer for windows, the installer install mysql again to my comp. And i can't open phpmyadmin to check the database because the root is change caused by the mysql installation.
Can you help me to give the root password?

You should not have used the 1 click installer since you have mysql already installed. Fedena might not be installed properly in your system.
You will have to uninstall fedena to get back to your old mysql database. Since you already have MySQL, you may use "Fedena bundle" version.
You can get the root password from C:\Fedena\fedena\config\database.yml