Joomla2.5 troubleshoot

1. Error : while uploading and installing  Komento in joomla2.5 from Extension manager 

There was an error uploading this file to the server.

Solution : changed max upload file size to 4M in php.ini

navigated C:\xampp\php and opened php.ini and changed the value of upload_max_filesize to 4M and it worked !!