How to install Minecraft in 64 bit???

When I'm playing Minecraft, I always experience really low FPS. Recently playing the latest version of MC I noticed that the game recommend that I have a "64 bit installation" but that I currently only had 32 bit. I have no clue what the difference is or how to get 64 bit. From what I've gathered I know I'll have to go to java.com to download something and thats all I know. Any guidance will be GREATLY appreciated!!!

The 64bit installation is not to do with minecraft but it is in relation to Java (which minecraft uses). If you are on a 64bit operating system then you should use the 64bit version of Java (by default Java always installs the 32bit version).

There are detailed tutorials and instructions on how to install 64bit java on the net, here is a decent one :-

http://forum.precipicegames.com/support/running-minecraft-using-64-bit-java-a-tutorial-by-a-noob-for-noobs/

I personally did not see any performance gain switching from 32bit java to 64bit but it did make Minecraft a lot more stable.

I have a 32 bit opersting system and Vista (unlike the guy in the tutorial). Wil I still be able to do it?

You need a 64-bit OS to use 64-bit programs.

No, you need a 64 bit OS for 64 bit software. Do this: Create a "Minecraft.txt" (call it whatever you like), open, and paste this into it javaw -Xmx4096m -Xms3072m -jar "C:\Program Files\Minecraft\minecraft.exe" then rename the Minecraft.txt to Minecraft.bat, always run the game with it. That's mine tho, you can put what you like, if you have 2 gigs of RAM write something like javaw -Xmx2048m -Xms1024m etc, remember to change the path and don't forget to also include the " ".DanielDust

I have no clue how to do that...I'm a bit of a novice

How much RAM do you have? (if you don't know, right click on computer or my computer and click properties, should be there) and where do you have Minecraft installed? in what folder on what drive/HDD.DanielDust

I have 2 GB of RAM. To answer your second question I'm not entirely sure, I just remember going to %appdata% and thats where the .minecraft folder is.

Well so far its:

javaw -Xmx2048m -Xms1024m -jar ""

Yes that's where Minecraft installs itself, but is the minecraft.exe (what you downloaded from minecraft.net and use to launch the game) also there? (I know some put the exe in that folder, but not everyone does)

javaw and java don't work by default in windows as far as I know. You usually have to setup an environment variable in windows.

Well so far its:

javaw -Xmx2048m -Xms1024m -jar

""

Yes that's where Minecraft installs itself, but is the minecraft.exe (what you downloaded from minecraft.net and use to launch the game) also there? (I know some put the exe in that folder, but not everyone does)

DanielDust

Well I clicked on the icon on my desktop where I launch it from and I clicked on properties and all it said about location was "Location: C:UsersCalebDesktop". Also I typed that javaw xmx... thingy in my start menu search bar and it came up so I clicked on it, but it said "Error Could not create virtual machine. Hope this helps. Sorry for my noviceness:(

[QUOTE="DanielDust"]No, you need a 64 bit OS for 64 bit software. Do this: Create a "Minecraft.txt" (call it whatever you like), open, and paste this into it javaw -Xmx4096m -Xms3072m -jar "C:\Program Files\Minecraft\minecraft.exe" then rename the Minecraft.txt to Minecraft.bat, always run the game with it. That's mine tho, you can put what you like, if you have 2 gigs of RAM write something like javaw -Xmx2048m -Xms1024m etc, remember to change the path and don't forget to also include the " ".techsavy24

I have no clue how to do that...I'm a bit of a novice

Yeah his name is Tech Savy, but he can't understand start arguments :)

Pretty funny IMO

Ok - right click anywhere on the desktop, new, text document, name it Minecraft.txt - open Minecraft.txt and paste this into it javaw -Xmx2048m -Xms1024m -jar "C:\Users\Caleb\Desktop" - save it and rename Minecraft.txt into Minecraft.bat Now you need to always start Minecraft with Minecraft.bat instead of the Minecraft.exe (remember, if you ever move Minecraft.exe, you'll need to change "C:\Users\Caleb\Desktop" to the new location, otherwise it wouldn't work.DanielDust

I see where you're getting at. I did everything that you said and eventually I ended up with a file on my desktop that was a .bat (It has a picture of two blue gears on a white backgound). but when I open it, it has a "Java Virtual Machine Launcher error. Could not access jarfile" Any ideas?

[QUOTE="DanielDust"]Ok - right click anywhere on the desktop, new, text document, name it Minecraft.txt - open Minecraft.txt and paste this into it javaw -Xmx2048m -Xms1024m -jar "C:\Users\Caleb\Desktop" - save it and rename Minecraft.txt into Minecraft.bat Now you need to always start Minecraft with Minecraft.bat instead of the Minecraft.exe (remember, if you ever move Minecraft.exe, you'll need to change "C:\Users\Caleb\Desktop" to the new location, otherwise it wouldn't work.techsavy24

I see where you're getting at. I did everything that you said and eventually I ended up with a file on my desktop that was a .bat (It has a picture of two blue gears on a white backgound). but when I open it, it has a "Java Virtual Machine Launcher error. Could not access jarfile" Any ideas?

Your getting this error because -jar "C:\Users\Caleb\Desktop" doesn't link to a legit java file. You need to put -jar to the minecraft Jar file.

So yours is probably -jar "C:\Users\Caleb\AppData\Roaming\.minecraft\bin\minecraft.jar"

I messed up, didn't notice.

javaw -Xmx2048m -Xms1024m -jar "C:\Users\Caleb\Desktop\minecraft.exe"

It needed the complete path, location and file name for the application. It had an error because it had nothing to run.

I messed up, didn't notice.

javaw -Xmx2048m -Xms1024m -jar "C:\Users\Caleb\Desktop\minecraft.exe"

It needed the complete path, location and file name for the application. It had an error because it had nothing to run.

DanielDust

Ok I tried doing what you said but I couldn't get it to do what I wanted. Furthermore now whenever I click on Minecraft it doesn't start up and says this error

"
A fatal error has been detected by the Java Runtime Environment:
EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0658374d, pid=7244, tid=13048
JRE version: 6.0_26-b03
Java VM: Java HotSpot(TM) Client VM (20.1-b02 mixed mode windows-x86 )
Problematic frame:
C [ig4dev32.dll+0x374d]"

Any ideas?