Retrieving Overwritten Data
Accidental file deletion is one of the most common hard drive data loss scenarios. Contrary to popular belief, modern operating systems do not immediately overwrite deleted files under normal circumstances. When computer users delete files, Windows, Mac OS X and other operating systems erase the corresponding file directory entries. The computer will overwrite the actual contents of the deleted files when it writes new data, but until this point, users can regain access to the files with the help of a professional data recovery service.
Overwrites can cause permanent data loss. If you accidentally delete a file, turn off your computer immediately.
Factors that affect data recovery success rates for deleted files include:
- Extent of Media Overwrites
- Size of Deleted Files
- Filesystem and Operating System
- Media Type
- File Format
However, experienced data recovery engineers can often rebuild partially overwritten files. At Secure Data Recovery Services, we treat hundreds of overwritten hard drives, flash drives and other devices each year. While data recovery rates are higher for devices with minimal overwrites, our engineers use an individualized approach to give each case the best possible chances of success. Contact our customer service team today to set up a free media evaluation or for more information.
Minimizing Data Loss After Accidental File Deletion
If you have accidentally deleted a file, you should take immediate steps to limit overwrites. Turn your computer off or unmount the affected volume. Computers constantly read and write data while operating, and the longer that a computer runs after an accidental file deletion or format, the higher the chances of permanent data loss.
Never install any software or move any files to the affected volume. Use caution when using undeleted system utilities and do not use commercial data recovery software. Data recovery programs use a number of different techniques to treat deleted files, but some programs can contribute to file corruption issues by partially overwriting data.
While many file recovery utilities provide lists of potentially recoverable files, these lists are not accurate if your device has overwritten data. The safest course of action is always to keep your device powered off until you can get an evaluation from a professional recovery company.
Our customer service team is available 24-hours a day to answer any questions or to get your case started.