In case if you want to increase maximum upload size of your media you can do so by trying one of the below:

1. Php.ini:
Many shared hosting services, does’nt provide php.ini file in root folder as it is risky, so you can create one in your root folder and add following code:
upload_max_filesize = 64M
post_max_size = 64M
max_execution_time = 300
if 64 doesn’t work. Try 10MB (sometimes that work).

2. .htaccess Method:
If above does’nt try modifying .htaccess file, add following lines of code:
php_value upload_max_filesize 64M
php_value post_max_size 64M
php_value max_execution_time 300
php_value max_input_time 300
if you have shared hosting,this may not work.

3. Contact Hosting Service Provider:
If above both method doe’nt work try contacting your hosting company.

4.Theme Functions File:
Editing theme functions.php file may also work, add following code in theme file
@ini_set( ‘upload_max_size’ , ’64M’ );
@ini_set( ‘post_max_size’, ’64M’);
@ini_set( ‘max_execution_time’, ‘300’ );

5. wp-config.php:
You can also edit wp-config.php file by define(‘WP_MEMORY_LIMIT’, ’64M’) , adding this code at top of file.

6. Plugin:
If above all methods does not work, use plugin for the purpose Increase Upload Max Filesize.This plugin will automatically add code in your php.ini on server

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