I\'m running Windows 8 and I can not get javac to work.
I have set my PATH in environmental variables to
C:\\Program Files (x86)\\Java\\jdk1.7.0_17\\
As far as I can see you have the JRE in your PATH, but not the JDK.
JRE
PATH
JDK
From a command prompt try this:
set PATH=%PATH%;C:\Program Files (x86)\Java\jdk1.7.0_17\bin
Then try javac again - if this works you'll need to permanently modify your environment variables to have PATH include the JDK too.
javac