Errors and their repairing in simple mode

In general there are three types of errors that can occur:

  • Inconsistency in file allocation tables (FAT): FAT table contains information about every file and directory stored in the image including the size and the exact position, where it is stored. In each image there are two FAT tables copies that have to be consistent. If just one FAT table is corrupted, you can save your data using the other table. If the FAT tables aren't consistent, CheckImage chooses for you the table with less errors. When you choose to repair the image, the FAT table inconsistency is repaired also.
  • Lost clusters: Some sectors (the whole image is divided into sectors, each sector contains 512 bytes of data) in FAT table are marked as if they were filled with data, but they don't belong to any file in the image. These sectors are marked as free space by repairing of the image.
  • Damaged object(s): A damaged object means either a file or a directory that contains errors. The repair method which will be used depends on the error(s) found in each damaged object. Some of them even can't be repaired and have to be deleted.

Information about errors in the image you have checked is in the line at the bottom of the application window.

Damaged objects are listed in the table in the middle of the window. For each object there is information about its name (with the full path), size (just for files), errors and the method which will be used by repairing. More information about errors and relevant repair methods is on page Description of error types in images

Now the last remaining action is to repair the image. The repaired image is closed in the end.

Related references

Description of error types in images
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