How uninstall the templates in joomla 2.5.8?

I have installed many free templates in my joomla 2.5.8 version and some of them don't work correctly so I would like to remove them.
So I have done like this:
In menu extension I have chosen Installation then I have clicked Management and I got such a message:

Fatal error: Maximum execution time of 30 seconds exceeded in C:\xampp\htdocs\joomla25\libraries\joomla\string\string.php on line 399

Is anyone who could help me to find solution?Thank you in advance.

 

You need to change the maximum execution time setting in the php.ini file. It should be at least 180 seconds. If you are not running this site on your own local server, most likely you would not have access to that file. Contact your hosting company and ask them to change the maximum execution time for you.

 

Where is that file located? I run it on local server so I could edit it but I can not find it.

 

I have found it already. It is in the path: xampp/php/php.ini and execution time was 30 sec so I have changed it to 180 s as you have suggested but unfortunately nothing helped and I got error message:

atal error: Maximum execution time of 30 seconds exceeded in C:\xampp\htdocs\joomla25\libraries\joomla\language\language.php on line 838

but after that I turned the server off and turn it back and it has finally started working properly. So thank you for your help.

 

Deleting the template folder is the same as you remove this template in administrate panel?

 

Try to go to your Joomla dashboard. Klik Extensions, then klik Extension Managers then click Manage then choose the template then click uninstall.
Cara Membuat Website

 

Have you read those post above? I have explained how to remove unwanted templates from joomla but well, I have finally asked question if I manually delete whole folder with template's content is it the same I would remove it from administration panel with the way which was described in earlier posts.

 

Simply go to your control panel . Visit your filemanager>public_html>templates> Delete the unwanted templates

 

Thank you for your comment but I have found it out already and I have mentioned this above. But my last question is still not answered.

 

Hello

you will still have leftover entries in the database if you only remove the directories. Uninstalling is the way

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I thought the same that uninstalling from admin panel is the best way to remove any components in joomla including templates.

 

If you want to uninstall a Joomla 2.5 template you should navigate to the Joomla 2.5 admin area -> Extensions -> Extension Manager.

Open the Manage tab. Select Template from the Select Type drop-down menu. Search for the chosen template in the filtered results and click on the check box besides it. Find the Uninstall icon in the upper right Joomla 2.5 menu and click on it to completely remove the chosen template.
This is the way you uninstall your template. But max_execution_time is caused from php.ini. You can either edit your php.ini file from your server or you can create yourself a new one and place it in public_html folder and administrator folder of your joomla installation. Don't forget to set the max_execuiton_time to 180 or more.
Deleting the templates manually from your server is the same thing, but mysql will hold some query in it. So it is not recommended, but you won't find any differences in your website performance, unless the number of traffic is very high.

 

Thank you mate for detailed explanation and I will always remove any joomla component just from admin panel, not manually