I can get my server working fine whenever I launch my run.bat like this: @ECHO OFF "C:\Program File\Java\jre7\bin\java.exe" -Xms1024m -Xmx1024m -jar craftbukkit.jar pause But when I try to add any RAM (I go by the GB'S), and change the Xm's to -Xms2048m -Xmx2048m I get this error: Error occurred during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. Press any key to continue... I have a Windows 8 x86, I can host the server fine with plugins and people playing with the one GB, but it always puts up this error whenever I try to add more GB's. Is there anyway to solve this?