I cant use the new World of Minecraft Client.
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Ruddy
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i put the minecraft.jar into the lib folder and then clicked run.bat then a black box came up saying exactly this:

Autodetecting java
Testing default folder
Checking "C:\Program Files\Java\jre6\bin\java.exe"
Error occured during initilization of UM
Could not reserve enough space for object heap
ERROR: Failed to run minecraft
JAVA6="C:\Program Files\Java\jre6\bin\java.exe"
Press any key to continue . . .

can someone PLEASE help me.. :) it would mean alot.

btw i have never used World of Minecraft Client before until now.

calcakes
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hm

Looks like some kind of memory allocation error, how much RAM do you have?

Ruddy
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..

how do i find that out? :S

Jon
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How to see how much RAM you

How to see how much RAM you have.

1. Click start and locate the My Computer icon.

2. Right-click the My Computer icon, and select Properties from the menu that appears.

3. Look
under the General tab where it gives you information about the size of
the hard drive and what operating system you use to find the amount of
RAM in megabytes (MB) or Gigabytes (GB).

4.Minecraft can run with 1GB of RAM.

How to fix Minecraft to run with less RAM.


  1. Right click run.bat.
  2. Click edit.
  3. Press CTRL + F.
  4. Type in -Xms800M -Xmx800M.
  5. Once you find that line, change both the number to 500, or even less if that doesn't work.
  6. Go to File, then save the file.
H4X
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Jon is spot on.

Change it down to 500 but I wouldn't go any less.

Ruddy
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Okay i got 1.00 RAM

Okay i got 1.00 RAM but how do i do this part, i have windows vista by the way not XP

How to fix Minecraft to run with less RAM.

  1. Right click run.bat. (done that)
  2. Click edit. (cant find edit..)
  3. Press CTRL + F.
  4. Type in -Xms800M -Xmx800M.
  5. Once you find that line, change both the number to 500, or even less if that doesn't work.
  6. Go to File, then save the file.
Jon
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Vista Instructions

Vista Instructions for editing run.bat.

1. Open up any text editor, like Notepad.
2. Go to "File", then click "Open".
3. At the bottom of the "Open" window, locate "Files of type".
4. Change "Files of type" to "All Files".
5. Locate and open run.bat.
6. Press CTRL + F.
7. Type in -Xms800M -Xmx800M.
8. Once you find that line, change both the number to 500, or even less if that doesn't work.
9. Go to File, then save the file.

Casting Kai
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The hayl?

I had the same error.  I had more than enough ram, exactly 1.96 Gigs of it.  And I had fixed it with the same thing, can someone please enlighten me of why 500 Megs only works and not 800 Megs with a 1.96 Gigs of ram computer?

Jon
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Possible Java Error

This may be the result of a bug in Java. Try updating it. If that doesn't work you may want to try to actually increase the number to 1000. This will allocate more memory for Java.

Ruddy
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Thanks

thanks so much i had to put it to 400 cos 500 still didnt work. xD lol ty

H4X
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Insufficient free memory.

Casting Kai wrote:
can someone please enlighten me of why 500 Megs only works and not 800 Megs with a 1.96 Gigs of ram computer?

You probably had many other applications open which caused you to have less than 800meg of ram free before you fired up the client.

Bendl
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this doesn't work for me, I

this doesn't work for me, I see no "-Xms800M -Xmx800M" line under run.bat... help?

Jon
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It's now just "-Xmx800M".

It's now just "-Xmx800M".

adslsl
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It doesn't work for me.. I

It doesn't work for me..

I have 2 GB ram and I tried change it from 100M to 1000M but I still can't use it:(

Popcornwolf
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I have 4 gigs of RAM...

I changed it from 800M to 100M, stil doesn't work D: