Merge pull request #787 from tinashekadiki/patch-1

Update windows download and install docs

src/en/guide/gettingStarted/downloadingAndInstalling.adoc

@@ -28,11 +28,26 @@ For manual installation follow these steps:
 
 * https://github.com/grails/grails-core/releases[Download] a binary distribution of Grails and extract the resulting zip file to a location of your choice
 * Set the GRAILS_HOME environment variable to the location where you extracted the zip
-** On Unix/Linux based systems this is typically a matter of adding something like the following `export GRAILS_HOME=/path/to/grails` to your profile
-** On Windows this is typically a matter of setting an environment variable under `My Computer/Advanced/Environment Variables`
-* Then add the `bin` directory to your `PATH` variable:
-** On Unix/Linux based systems this can be done by adding `export PATH="$PATH:$GRAILS_HOME/bin"` to your profile
-** On Windows this is done by modifying the `Path` environment variable under `My Computer/Advanced/Environment Variables`
+
+=== Unix/Linux
+** This is typically a matter of adding something like the following `export GRAILS_HOME=/path/to/grails` to your profile
+** This can be done by adding `export PATH="$PATH:$GRAILS_HOME/bin"` to your profile
+
+===Windows
+** Copy the path to the bin directory inside the grails folder you have downloaded, for example, 
+---
+C:/path_to_grails/bin
+---
+
+** Go to Environment Variables, you can typically search or run the command below, the type env and then Enter
+
+---
+Start + R
+
+---
+
+** Edit the Path variable on User Variables / System Variables depending on your choice.
+** Paste the copied path in the Path Variable.
 
 If Grails is working correctly you should now be able to type `grails -version` in the terminal window and see output similar to this: