When i click at any link at the website, althought the url changes, the visible website is the same. This happend also at the administration area, even if i click at a link, i always see the first page i see when i login
Elxis installer tries to redirect you on the elxis web root folder in order to start the installation process. If you have Elxis inside a folder and the parent folder has an other site you might confuse Elxis. You must know what you are doing in this case.I suggest you to install Elxis in localhost or create virtual hosts.The Elxis Team recomendations in to create vhosts like that site1.loc, site2.loc, etc...Details (for apache) you will find here: https://www.elxis.org/guides/developers-guides/local-apache-and-virtual-hosts.html
@speck Is index.php a default index on IIS? Normally it is index.html,index.html,default.html and something like that. The index.php might be missing. If this is the case add index.php in the default indexes and restart IIS.