compilation.md

@@ -69,16 +69,24 @@ On the use of LMGC90 itself, read the [first steps](./first_steps) section.
 
 ## Windows Anaconda ##
 
-Open an Anaconda prompt and activate the *lmgc90* environment
+If you strictly followed the [dependencies installation](./win_dependencies_install#by-using-python-anaconda-environment-manager)
+you can use a powershell script to build LMGC90 with HDF5 feature activated by default.
+
+This script needs to download the sources of HDF5, so make sure that
+you have an active connexion to the world wide web before trying to run it.
+
+To run the script, navigate to `lmgc90_user_xxx/conda` in your windows explore,
+the right click on `build_with_hdf5.ps1` and select `execute with powershell`.
+
+If you cannot or would not run script, you can make a standard build by opening
+the regular Anaconda prompt and activate the *lmgc90* environment
 (or whatever the name you choose during the [dependencies installation](./win_dependencies_install#by-using-python-anaconda-environment-manager)
 step) with the following command:
 ```cmd
 conda activate lmgc90
 ```
-
-Move to `lmgc90_user_xxxx` folder with `cd` command  
-
-To build lmgc90 the following commands must be carefully issued:
+Then move to `lmgc90_user_xxxx` folder with `cd` command  
+and build lmgc90 by issuing the following commands:
 ```cmd
 cd build
 cmake .. -DVENV_PATH=%CONDA_PREFIX% -G "MinGW Makefiles"
@@ -92,7 +100,7 @@ It is especially important TO NOT RUN the `cmake` command from the
 `lmgc90_user_xxxx` directory (see the [faq](./faq#known-compilation-errors))
 in this case.
 
-If everything went well, then you can start the _Anaconda Navigator_ application.
+Whatever the method, if everything went well, then you can start the _Anaconda Navigator_ application.
 The first thing is to activate the environment to use LMGC90 by
 selection _lmgc90_ in the menu next to _Applications on_ on the upper part of the window.