The UltraISO program is one of the most powerful and functional in terms of working with images of many well-known types. However, this application, despite all its advantages, when opening some files is not immune from the appearance of an error with a message about an unknown image format. UltraISO, in theory, recognizes almost everything that is possible. But why then does such a crash take off? Let's try to figure out what this is connected with and how to fix the problem in the simplest ways.
Error in UltraISO "Unknown Image Format": Causes
We begin, of course, by considering the causes of this phenomenon. In the most general case, it can be noted that in a sense this application (however, like its counterparts) works somewhat similar to archiver programs, which also seem to determine the type of file they associate with and sometimes see its contents, but cannot open it. The main reason that an ISO UltraISO image format message is issued even for registered file types is considered to be incorrect creation of the image initially, which in some ways resembles incorrect data packaging or problems with underloaded archives. It may well be that the application in which the image was originally created did not complete the job correctly, or the creation of the image was not fully completed. The same can be said about downloading images from the Internet, when the desired file was damaged or not fully downloaded.
It also happens that an error is issued for unsupported formats (for example, DMG) that are designed for other operating systems other than Windows.
UltraISO: unknown iso image format. What to do first?
Now consider troubleshooting. First of all, if we are talking about underloaded or damaged files, just repeat the download from another resource. Next, pay attention to the moment that, despite the icon of the association of the opened object with the program present in the file manager, such a file cannot always be supported by it.
In order to make sure of full support, in the same "Explorer" turn on the display of extensions or first run the UltraISO application itself, and only then use the file open through the corresponding menu, at the same time viewing the list of supported formats. If the type being opened is not there, you can not even try to perform any actions with the object.
Using archiver software
If the message about the unknown UltraISO image format is issued even for registered and fully supported file types, try opening the action object in any archiver available on the computer.
WinRAR and 7-Zip are best suited for such purposes. In them, in addition to the basic tools, it is possible to use file-by-file extraction of components, which allows you to save important files on the hard disk for further repackaging into an image.
Opening IMA and WIC Images
Another common situation with the appearance of a message about an unknown image format in UltraISO may be related to the cloning of data originally stored on removable media, when an IMA file seems to be associated with the program is created without the user’s output, but subsequently it will not be opened by the main application, nor similar programs.
In this case, strangely enough, the forgotten Win32 Disk Imager utility helps many. But with its help you can extract data from the image so that later you can create a new image from it or the same bootable USB flash drive.
As for the UltraISO package itself, just in case, it is recommended to download and install its latest version. Sometimes you can still try to open the image in another similar program or even restore the archive through WinRAR. It is possible that such an approach will help get rid of the problem.