Thanks Javier, yes you're right, and it seems that this "if-test" has never work correctly in J3 (i just look in an J3.2.1, same problem). So i suppose that if a user activate UseFTP during the installation, and there a wrong chmod or a safe_mode on his hosting, the process will not be able to use the 'FTP mode' to remove the installation folder !?

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@javigomez It would be better if you can elaborate the steps to reproduce the issue. I tried to reproduce this on Joomla 3.3.7 version. I can see the line in file as you mentioned above.

This comment was created with the J!Tracker Application at issues.joomla.org/joomla-cms/4703.

Insert:
$model = new InstallationModelSetup;
$options = $model->getOptions();
before if

Since #5025 tackles this issue, this ticket should be closed.

Set to "closed" on behalf of @zero-24 by The JTracker Application at issues.joomla.org/joomla-cms/4703

done @Hackwar

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