Hello, I have installed wordpress and now I want to uninstall it, but without delete all the files on public_html folder. Or deleting the database.
Also I want to modify some parameters in php.ini and .htaccess files. Where do I find them?
Login to your file manager, use your website name as the username and your website password as the password.
The files are located in there 
Thx for the response! How could I add this parameters?
In php.ini define the following:
'max_execution_time' => 60;
'memory_limit' => 128;
'post_max_size' => 8;
'upload_max_filesize' => 8;
'max_input_time' => 45;
'file_uploads' => 'on';
'safe_mode' => 'off';
in .htaccess file: 'php_value max_execution_time' => 60;
in wp-config.php: 'set_time_limit' => 60;
1 GB of disk space
memory limit per process: 64mb (128mb or more recommended)
I have to mention that I use the free webhosting service.
On the free service you cannot modify values no sorry.