Have you ever met other data loss problems that related to the format matter? We have known that we would lose all contents stored on the ADATA external hard drive at the old time if the external hard drive is formatted, and the result is the same if the portable hard disk drive is reformatted accidentally or intentionally. But as a matter of fact, there are other kinds of data loss situations which due to format case when we use the external hard drive. How many of them have you ever met? We can still perform data recovery in other cases, and here are some of them below:

1. The external hard drive is in not formatted error. Disk is not formatted; do you want to format it now? Or you have to format the disk in drive O before you can use it, do you want to format it now? Sentences above show that the external hard drive is in not formatted problem if we see them when try to open the portable hard disk drive. The result of external hard drive get into not formatted error is information on it would be inaccessible.

2. The external hard drive can not be formatted. Sometimes we may not be able to format the external hard drive when click on the format or format all button by mistake or by intention. What’s more, computer operating system may show us that windows can not format the external hard disk drive. Then we may find that we can not access files saved on the external hard drive at the original time. So we lose them in this case.

3. The external hard drive is formatted by error or by intention. We have known that there would be nothing saved on the external hard drive if it is reformatted. So we can conclude that we would lose files on the portable hard drive if reformat it. but as a matter of fact, we lose those original contents when we format the external hard drive at the first time.

4. Other cases. By the way, the external hard drive shows raw file system means that it is in not formatted error.

Common brands of external hard drive we can perform data recovery

Besides ADATA external hard drive from which we may be able to get lost files back after reformatting it, we can also perform data recovery on portable hard disk drive from other brands while being reformatted by mistake or by intention. For example, we can ask data recovery program for help after reformatting the external hard drive from WD (western digital), Seagate, Toshiba, HGST, SAMSUNG, Intel, Micron, OCZ, Kingston, and others.

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