How to effectively copy, paste and display an entire Wordpress folder?

I always make make backups in the following way: project0.1, project0.2, and so on. I just started using Wordpress today and it seems like modyfing the root folder's name makes some elements display: Not Found (the CSS still the same).

This happens when I copy and paste the root fold开发者_如何学Cer of my Wordpress and assign it another name.

Which are the files where I have to modify the root folder's name or the problems is in the database?

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The wordpress config file wp-config.php will usually contain the web root and the database settings.

In the database, there is an options table that will contain 1-2 settings containing the base URL; also, there may be links pointing to the live site in the posts.