If you are frustrated by the constant interruptions of the JavaW error on your screen, this article tells you how to fix it in a jiffy.
Java.exe is similar to JavaW.exe, except that it launches in a console window.
Java is a programming language that can run on cross platforms. Not only is Java used in many programs, it’s suitable to run many games, as well as power up many social media websites. Java can only run with the help of Java Virtual Machine, a compiler that can execute code pretty easily.
Java Software Development Kit (SDK) or JDK is a free-to-download program from Oracle, which contains the Java Virtual Machine (JVM), a compiler that converts the program to bytecode. JRE stands for Java Runtime Environment, and acts as an interpreter for bytecode. This makes it easier to run or execute any program or software that was based on Java. But JVM consumes a lot of memory and slows the computer down. This inadvertently leads to the JavaW.exe error, which occurs at random moments. This error usually occurs at the time of improper shutdown, or when games consume memory usually reserved for core programs. Here, we give you some tips on how to fix the JavaW.exe error.
What is JavaW.exe?
JavaW.exe is an executable file necessary to run Java programs on Windows. These are step-by-step instructions needed by the computer to run the program in a systematic manner. All software programs are executed using an EXE file. It’s an executable file used to run Eclipse. The JavaW.exe file launches in a separate window, with error information if it doesn’t work for some reason.
The browser or the word document processing software, all need executable files to run on your computer. So this functions the same way and lets you view all programs that run on Java.
Causes of JavaW.exe Error
The causes are attributed to invalid registry entries, corrupt files or malware that’s refusing the program to function. These errors are caused by:
Corrupt Windows registry keys
JavaW and other EXE file errors can be traced back to the Windows registry. Sometimes, when these programs are uninstalled, they leave behind EXE files with unrelated paths. This creates an error or memory gap if you will in the RAM. This leaves an opening for viruses to enter in the system.
Manually editing the registry can be risky as one misplaced comma can cause it to reboot and lose precious data in the process.
Virus or malware infection
Your computer could be a host to an unwanted visitor like a virus. These programs usually take on the guise of executable files. Clicking on them once is more than enough to contaminate the system. This results in some programs not executing or some programs even refusing to open the path to the Windows registry.
How to fix JavaW Error on Windows XP/Windows 7/Windows 8
1. If you don’t have the latest JDK, download it. After installing the software, find the exe file. It’s usually located at C:\\My Computer\Program Files\Java\Jre\bin. Copy the location, paste it in a Notepad file, and hold on to it.
2. Go to ‘My Computer’. Right-click and go to ‘Properties’.
3. Click on ‘Advanced System Settings’. A dialog box opens with five tabs. In the ‘Advanced’ tab, click on ‘Environment Variables’.
4. After clicking on Environment Variables, click on ‘New’.
5. A new dialog box will pop up. Fill the Variable Name as ‘Path’.
6. Click on the Variable Path and paste the file path that you saved in the Notepad. If you already have a path, then you should put a semi-colon (;) at the end’ or it won’t execute or it erases all other paths.
7. Click on ‘Ok’. It will save the current settings, and the error should be resolved.
This method will erase all data to a former point when there’s no Java installed. The steps to this method are:
1. Log in as the administrator.
2. Click on the ‘Start button’, go to ‘Accessories’, ‘System Tools’, and then click ‘System Restore’.
3. In the new window, select ‘Restore my computer to an earlier time’ option, and click ‘Next’. Click Next to confirm.
4. Restart your computer when the restoration is finished.
Minecraft JavaW.exe Error
Minecraft is a game designed to let the player build structures in 3D cubes. It also allows you to explore the world according to the different modes you choose in the beginning of the game. Since the game uses too much memory, the whole game crashes and shuts down, but it does save the cause in an error report. If it does occur, you can solve it using the following steps, but take a backup copy first.
1. Open up a notepad and type the following: C:\Program Files\Java\jre6\bin\java” -Xms2048M -Xmx2048M -jar “C:\minecraft.jar”
2. Save the file in .bat extension as minecraft.bat. The .bat extension contains a list of commands you need to execute in the DOS prompt, called the batch file.
3. Download Minecraft’s ‘Linux version’ at http://minecraft.net. Save it to C:\minecraft.jar.
4. Double-click the minecraft.bat file. The first part tells Windows, when you double-click the .bat, it should launch Java runtime. The second part is the -Xmx and -Xms part. These are settings for how much memory you assign to run the program. Xmx is the maximum and Xms is the minimum memory. Both these parameters work to execute the program. The last part -jar C:\… is an argument too, telling Java where it can find the Minecraft.jar launcher.
(Also, check the C:\minecraft.jar, C:\Program Files\Java\jre6\bin\java.exe paths. These things may vary.)
These are some small tips to help solve this error. If you see a JavaW.exe file consuming too much memory even after you have closed the JVM, then it would appear to be a virus, and the best thing to do is format the computer and install a good anti-virus software.