diff --git a/doc/en/installation/01a.rst b/doc/en/installation/from_centreon.rst
similarity index 97%
rename from doc/en/installation/01a.rst
rename to doc/en/installation/from_centreon.rst
index 431806685d4a0b44465c593d283cced13db7aecd..d43be232394078727aed9f2c8a3f188aeece8a06 100644
--- a/doc/en/installation/01a.rst
+++ b/doc/en/installation/from_centreon.rst
@@ -11,7 +11,7 @@ Installation
 Step 1 : Start
 ==============
 
-To install, start your server on the support (created from the ISO file) of the Centreon Enterprise Server.
+To install, start your server on the support (created from the ISO file) of the Centreon.
 Start with the **Install or upgrade an existing system** option
 
 .. image :: /images/user/abootmenu.png
@@ -24,6 +24,7 @@ Click on **Next**
    :align: center
    :scale: 65%
 
+
 Step 2 : Choice of language
 ===========================
 
@@ -39,6 +40,7 @@ Select the keyboard used by your system and click on **Next**.
    :align: center
    :scale: 65%
 
+
 Step 3 : General configuration
 ==============================
 
@@ -78,6 +80,7 @@ Select the partitioning options that suit you best. Then validate.
    :align: center
    :scale: 65%
 
+
 Step 4 : Component selection
 ============================
 
@@ -112,6 +115,7 @@ When the installation is finished, click on **Restart**.
    :align: center
    :scale: 65%
 
+
 *************
 Configuration
 *************
@@ -126,37 +130,37 @@ The End of installation wizard of Centreon is displayed, click on **Next**.
 
 .. image :: /images/user/acentreonwelcome.png
    :align: center
-   :scale: 65%
+   :scale: 85%
 
 The End of installation wizard of Centreon checks the availability of the modules, click on **Next**.
 
 .. image :: /images/user/acentreoncheckmodules.png
    :align: center
-   :scale: 65%
+   :scale: 85%
 
 Click on **Next**.
 
 .. image :: /images/user/amonitoringengine2.png
    :align: center
-   :scale: 65%
+   :scale: 85%
 
 Click on **Next**.
 
 .. image :: /images/user/abrokerinfo2.png
    :align: center
-   :scale: 65%
+   :scale: 85%
 
 Define the data concerning the admin user, click on **Next**.
 
 .. image :: /images/user/aadmininfo.png
    :align: center
-   :scale: 65%
+   :scale: 85%
 
 By default, the ‘localhost’ server is defined and the root password is empty. If you use a remote database server, these two data entries must be changed. In our box, we only need to define a password for the user accessing the Centreon databases, i.e. ‘Centreon’, click on **Next**.
 
 .. image :: /images/user/adbinfo.png
    :align: center
-   :scale: 65%
+   :scale: 85%
 
 If the following error message appears: **Add innodb_file_per_table=1 in my.cnf file under the [mysqld] section and restart MySQL Server.** Perform the following operation:
 
@@ -164,25 +168,23 @@ If the following error message appears: **Add innodb_file_per_table=1 in my.cnf
 2.	Modify this file 
 
 ::
-
 	/etc/my.cnf
-
 3.	Add these lines to the file
 
 .. raw:: latex 
 
-        \begin{lstlisting}
+\begin{lstlisting}
 	[mysqld] 
 	innodb_file_per_table=1
-        \end{lstlisting}
+\end{lstlisting}
 
 4.	Restart mysql service
 
 .. raw:: latex
 
-        \begin{lstlisting}
+\begin{lstlisting}
 	/etc/init.d/mysql restart
-        \end{lstlisting}
+\end{lstlisting}
 
 5.	click on **Refresh**
 
diff --git a/doc/en/installation/index.rst b/doc/en/installation/index.rst
index 4b341289e2a9f29de8637b1fb3435bc5c936d8fe..99c6de000b7e6975d9628715850bfbcfe91332e0 100644
--- a/doc/en/installation/index.rst
+++ b/doc/en/installation/index.rst
@@ -18,7 +18,7 @@ Finally, you can install the platform.
     architecture/index
     installation/index
     downloads
-    01a
+    from_centreon
     from_packages
     from_VM
     from_sources
diff --git a/doc/fr/installation/01a.rst b/doc/fr/installation/from_centreon.rst
similarity index 100%
rename from doc/fr/installation/01a.rst
rename to doc/fr/installation/from_centreon.rst
diff --git a/doc/fr/installation/index.rst b/doc/fr/installation/index.rst
index f1b792ca94c78582a17764c9ebec5fb507ac9c39..d8afbb79792ce09c192c722b8eb594d153de18c6 100644
--- a/doc/fr/installation/index.rst
+++ b/doc/fr/installation/index.rst
@@ -19,7 +19,7 @@ Enfin, vous pourrez procéder à l'installation de la plate-forme.
    architecture/index
    installation/index
    downloads
-   01a
+   from_centreon
    from_packages
    from_VM
    from_sources