When trying to run Android Studio on my computer, I get the following error:
The Environment variable JAVA_HOME (with a value of C:\Program Files(x86)\Java\jdk1.7.0_51\bin) does not point to a valid JVM installation
No JVM Found. Please install a 64-bit JDK. If you already have a JDK installed, define a JAVA_HOME variable in Computer > System Properties > System Settings > Environment Variables
Do step by step as shown in this YouTube Video
System -> Advanced system settings -> Environment Variables
Add a new variable to you profile
STRING: Program Files/java/"your string"
Save and Start Android Studio ;)