JHM File Extension

What is JHM file?

Full format name of files that use JHM extension is Java Help Mapping. Java Help Mapping specification was created by Oracle Corporation. JHM files are supported by software applications available for devices running Windows. JHM file format, along with 6033 other file formats, belongs to the Misc Files category. The most popular software that supports JHM files is Java. Software named Java was created by Oracle Corporation. In order to find more detailed information on the software and JHM files, check the developer’s official website.

Programs which support JHM file extension

The following listing features JHM-compatible programs. Files with JHM extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

How to open file with JHM extension?

Being unable to open files with JHM extension can be have various origins. Fortunately, most common problems with JHM files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with JHM files.

Step 1. Get the Java

The most common reason for such problems is the lack of proper applications that supports JHM files installed on the system. The solution is straightforward, just download and install Java. Above you will find a complete listing of programs that support JHM files, classified according to system platforms for which they are available. If you want to download Java installer in the most secured manner, we suggest you visit Oracle Corporation website and download from their official repositories.

Step 2. Verify the you have the latest version of Java

If you already have Java installed on your systems and JHM files are still not opened properly, check if you have the latest version of the software. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why JHM files are not compatible with Java. The most recent version of Java is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open JHM files to Java

After installing Java (the most recent version) make sure that it is set as the default application to open JHM files. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

The procedure to change the default program in Windows

• Clicking the JHM with right mouse button will bring a menu from which you should select the Open with option
• Select Choose another app → More apps
• Finally select Look for another app on this PC, point to the folder where Java is installed, check the Always use this app to open JHM files box and conform your selection by clicking OK button

The procedure to change the default program in Mac OS

• Right-click the JHM file and select Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with JHM extension. By clicking Continue you confirm your selection.

Step 4. Check the JHM for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper JHM file. Being unable to access the file can be related to various issues.

1. The JHM may be infected with malware – make sure to scan it with an antivirus tool.

If the JHM is indeed infected, it is possible that the malware is blocking it from opening. Scan the JHM file as well as your computer for malware or viruses. If the JHM file is indeed infected follow the instructions below.

2. Verify that the JHM file’s structure is intact

If you obtained the problematic JHM file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with JHM extension was interrupted and the file data is defective. Download the file again from the same source.

3. Check if the user that you are logged as has administrative privileges.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle Java

If the system is under havy load, it may not be able to handle the program that you use to open files with JHM extension. In this case close the other applications.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Java Help Mapping file. It is possible that one of the available system or driver updates may solve the problems with JHM files affecting older versions of given software.

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