The Windows path environment variable allows commands to be called and the appropriate executable file to be found, without the full directory specification of the file.
The Path environmental variable is configured via the computer System Settings.
Priority is given to command files matching the specified name, starting with the directory, at the left of the path string.
Windows stores the Path variable as a list of directories separated by semicolon characters. To add a new entry, append a semi-colon to the existing string and add your directory, together with a trailing slash (/).
Using the file manager right click on computer, selecting the properties option from the pop-up menu.
From the Computer Properties window select Advanced System Settings at the left.
Click on the Environment Variables button at the bottom of the Advanced tab.
In the box System Variables, scroll down to show path. Click on this to select and click on the Edit button below.
Make the required changes to the system path variable and conclude by clicking on OK.
Its possible that the computer may need restarting for the amendment to take effect.
If its associated with a program or service, such as an IIS website, then this may require restarting.
Note to perform the above actions you will need to be logged in with administrator privileges.
