Minecraft Forums

* I'm brand new to the MInecraft Forums, so I may have put this in the wrong sub-category. *
Also, this is very long.

OK, so to start off, I wanted to say that this didn't use to happen. From Nov. 2012 - Mar. 2013 I played Minecraft regularly on multiplayer AND singleplayer with very little lag and a two total crash reports. But in late March of this year, somehow, my laptop was hacked. It was DDosed, meaning that whoever it was made it so that I could not type at all or the laptop would immediately shut down. After two months of trying to fix it, I finally made a breakthrough a week ago and restored it. However, I had to reset the laptop in the process. So I re-downloaded all my old files and games and was excited to be able to fully experience the new Redstone Update. But that didn't happen.

The longest I've been able to play so far was an hour and a half on one of my own Creative worlds without it crashing. On a singleplayer Survival world the game will freeze and give me a crash report after eight minutes - sometime it lasts less than a minute. In the process of fixing the laptop, I had to use several different security systems, including Avast! and Trend Micro Titanium Security. I've now disabled them as I have no use for them at the moment, but for some reason they were blocking all Java features. I had to do a lot just to get it to download Java and use it, but the first time I tried to play Minecraft again in browser, it kept saying I was missing Java. I finally managed to turn the Java security down and use all the features, and I switched to downloaded Minecraft. Since then, it continually crashes every time I try to play, usually in about eight minutes. I decided today after researching it to download MCPatcher and use it with Optifine, and convert the texture pack I use (Ovo's Rustic Redemption) to it, but it still is crashing. I don't know what to do at this point, so I'm just going to post the Crash Report below. The reason for the crash is always the same: Updating Screen Events

---- Minecraft Crash Report ----
// Oops.

Time: 6/18/13 7:31 PM
Description: Updating screen events

java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Unknown Source)
at bkf.<init>(SourceFile:110)
at axk.a(SourceFile:20)
at axr.a(SourceFile:72)
at axr.d(SourceFile:127)
at axr.m(SourceFile:111)
at net.minecraft.client.Minecraft.l(SourceFile:1078)
at net.minecraft.client.Minecraft.K(SourceFile:574)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Unknown Source)
at bkf.<init>(SourceFile:110)
at axk.a(SourceFile:20)
at axr.a(SourceFile:72)
at axr.d(SourceFile:127)
at axr.m(SourceFile:111)

-- Affected screen --
Details:
Screen name: axk
Stacktrace:
at net.minecraft.client.Minecraft.l(SourceFile:1078)
at net.minecraft.client.Minecraft.K(SourceFile:574)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 369297800 bytes (352 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdates, ...[com.prupe.mcpatcher.MCPatcherUtils, Config, MCLogger, ...], [com.prupe.mcpatcher.mod.ColorizeItem, AAHelper, TessellatorUtils, ...]
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
LWJGL: 2.4.2
OpenGL: Intel(R) HD Graphics Family GL version 3.1.0 - Build 8.15.10.2462, Intel
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Ovos Rustic Redemption v3.2.1 (for 1.5.1).zip
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

I know this is very long and confusing, but I just don't know what to do, it doesn't make any sense. Please help if you know anything about or have experienced this problem.

Quote from Crafterguy3x3

Maybe it is running out of memory. Allocate more memory to Minecraft by doing this:

Minecraft ran out of the memory it can use, so it crashed to prevent damage to your computer. Open Notepad, and pase this into the Notepad:

start /high java -Xms<AMOUNT OF MEGABYTES TO START WITH>M -Xmx<MAXIMUM AMOUNT OF MEGABYTES OF MEMORY/RAM USABLE>M -cp Minecraft.exe net.minecraft.LauncherFrame

Where it says '<AMOUNT OF MEGABYTES TO START WITH>' put how many megabytes of Memory/RAM you want Java to start up with.
Where it says '<MAXIMUM AMOUNT OF MEGABYTES OF MEMORY/RAM USABLE>' put how many megabytes Java can possibly can use.
Save the Notepad as a .txt (Name it anything you like), then rename the extension to .bat, and move it to the same folder as your Minecraft.exe (Make sure it's the actual Minecraft.exe, not a Shortcut!)
Example:

start /high java -Xms3072M -Xmx3072M -cp Minecraft.exe net.minecraft.LauncherFrame

then rename the extension to .bat,

How do I rename the extension to .bat?

Quote from Crafterguy3x3

Right click the .txt and select Rename, then change the .txt to .bat

Thanks so much, it's working fine now and it will still freeze for a few seconds occasionally, but it hasn't crashed yet. I think it's because I need to go up and down and find some more stable amount of Megabytes to start Java with. Thanks!