Q:

Unable to start the JVM - Windows 7

Our company IT recently went through an upgrade and I don't know what else they changed to the defaults but Excel 2013 32-bit (w/ MATLAB Compiler Runtime add in) crashes multiple times a day and it's driving me crazy. 
I looked through the solutions to other similar questions but still having no luck. The exact error that I'm receiving is attached in the picture below. I've tried editing the environment variable to various amounts and checked that the free physical memory is available (has 16G total and usually half is free) 
Running java -version in the command prompt returns:
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b31)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

The Java Control Panel Runtime Environment Settings reference javaw.exe but I changed the environment variables on both the java.exe and javaw.exe (in both Program Files and Program Files (x86).

Unable to start the JVM. 
  Picked up _JAVA_OPTIONS: -Xmx1024m -Xms512m
  Error occurred during initialization of VM 
  Could not reserve enough space for budget heap
  There is not enough memory to start up the Java virtual machine.
  Try quitting other applications or increasing your virtual memory

A:

It says it does not have enough space. 
Change the setting for JVM Maximum Memory to 1024M
-Xmx1024m
Are there such setting for your plugin ? You might want to Google "JVM heap size settings for Excel MAtlab plugin".
Please take a look at this question as well. (Increase default heap size for windows)
Hope this helps!

