I have tried to install xoops-259 in localhost with easyPHP in window 7. I have no error in the creation of database and tables using the user root with all privileges in the database xoops. But during the installation of the datas of the administrator of the site in the initial setting i have the error :
Fatal Error Maximum execution time of 30 seconds exceeded file: J:\EasyPHP-12.1\www\xoops-2.5.9\htdocs\class\database\mysqldatabase.php : 66
Can someone help me ?

What version of PHP do you have?

Since this is your local PC, why don't you increase the "Maximum execution time" in your INI file?
On my test PC I have:


But you should check the PHP error log to see if there are any errors that would indicated what is wrong there....

Try changing the MySQL host to "127.0.0.1" instead of "localhost".

By default the installer will use "localhost" as the MySQL host. In some stacks on some versions of Windows that will cause issues. The underlying issue is each connection experiencing a time out waiting on a response from MySQL due to IPV6 vs. IPV4 versions of localhost.

There is a longer discussion of this here: https://xoops.org/modules/news/article.php?storyid=6758