![]() ![]() so that it can be used on different system platforms. If your drive is infected with virus or malware, you can format the disk to totally get rid of it. Many users take formatting as the last resort to errors they encounter. For example, when a disk becomes inaccessible and reports error message like " The file or directory is corrupted and unreadable", you may want to format it to repair corrupt volume. If you format volume in Windows, you can see the "Quick Format" option is selected by default. What are the differences between quick format and full format? Which one should you use to format / reformat disk? Have you ever wondered the difference whether it is selected? Normally, the formatting is called a full format if the "Quick Format" is not selected. What is quick format? The obvious feature is quick. The formatting does not check bad sectors for selected disk, but it deletes the journaling part of file systems. The journaling records what files are stored and where they are located. ![]() The quick format simply removes journal and lays a new and blank file system. It does not really recreate the file system and does not delete file data. Thus if there are not files that stored on the disk to overwrite lost data, you can recover files with a file recovery program. If you want to permanently wipe data, this is not the correct choice. What happens during full format? The full format runs an additional step that scans bad sectors, which takes much longer than a quick format. ![]() It completely wipes the drive being formatted and thus lost files are no longer recoverable by any means. Also, it scans and tries to fix bad sectors during formatting. ![]() A sector which is not writable, inaccessible or damaged is called a bad sector. If the full format finds bad sectors, it'll try to fix it.Ĭauses of bad sectors are many, such as failed flash memory transistors, aging, quality, failed heads, etc. If the process completes successfully, the drive becomes healthy again.Ī quick format does not permanently destroy data, and files can be unformatted by data recovery software. ![]()
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