Keytool not working on Windows

I have seen all the tutorials and forums and the same result and I am growing impatient. Please help me with this probem, I thank you in advanced. 

 

I opened command prompt and type

md Keystores

(enter)

cd %HOMEPATH%

 

(enter)

C:\Program Files (x86)\Java\jdk1.7.0_80\bin\keytool -genkey -v -keystore android.keystore -alias release -keyalg RSA -validity 999999

 

(enter)

I get this “C:Program is not recognize as an internal or external command, operable program or batch file”.

My enviromental variables are “Java_Home” with the value “C:\Program Files (x86)\Common Files\Java\Java Update”. What is wrong? I have a windows and I have downloaded the same java package name, the “jdk1.7.0_80”. I have been trying to release for a month and I am very frustrated. Please answer and please be  very specific, I want to release my game really bad.