diff --git a/book/chapter-06-gbapp-reference.md b/book/chapter-06-gbapp-reference.md
index c12355d7..cb9f61f2 100644
--- a/book/chapter-06-gbapp-reference.md
+++ b/book/chapter-06-gbapp-reference.md
@@ -20,7 +20,7 @@ session.
 ### Windows
 
 1. [Optional] Install [Chocolatey](https://chocolatey.org/install), a Windows Package Manager;
-2. Install [git](`https://git-scm.com/`), a Software Configuration Management (SCM).;
+2. Install [git](`https://git-scm.com/`), a Software Configuration Management (SCM);
 3. Install [Node.js](https://npmjs.com/get-npm), a [Runtime system](https://en.wikipedia.org/wiki/Runtime_system);
 4. Install Visual Studio Code Insiders, Brackets or Atom as an editor of your choice;
 5. Fork the repository by visiting https://github.com/pragmatismo-io/BotServer/fork;
@@ -29,15 +29,18 @@ session.
 8. Run the bot server by `gbot.cmd`.
 
 
-* Recomended Chocolatey packages
+* Required packages
 
 ```cmd
 
-choco feature enable -n allowGlobalConfirmation
-
 cinst git --confirm
 cinst nodejs --confirm
-npm install -g npm-check-updates
+
+```
+
+* Optional packages
+
+```
 
 cinst 7zip.install --confirm
 cinst tortoisegit --confirm
@@ -53,6 +56,14 @@ cinst sql-server-management-studio --confirm
 
 ```
 
+* node packages
+
+```
+
+npm install -g npm-check-updates
+
+```
+
 ![General Bots Inside Visual Studio Code provides a complete artificial intelligence based conversational platform](https://raw.githubusercontent.com/pragmatismo-io/BotServer/master/docs/images/general-bots-inside-visual-studio-code-provides-a-complete-artificial-intelligence-based-conversational-platform.png)