IDLE (Python GUI)

You will need to doiwnload Python 3.4.0 / IDLE to practise your coding: https://www.python.org/downloads/

If you cannot install Python, you can also use www.codepad.org

Batch installing software

There is a whole host of useful and free software out there. Anything that you will ever need will probably be on: http://ninite.com/

I would suggest you download and install:

Essentials:
Google Chrome
Skype
VLC
Audacity
Quicktime
Jave
.Net
Silverlight
Air
Shockwave
GIMP
Inkscape
Scratch 1.4
Adobe Reader
MalwareBytes
Google Drive