Case:
The customer has a Word document with a long number of words about 20,000 words. When editing, the earlier files that previously stored on the U disk covered the existing files, and then deleted.The Word document needs to be restored.
Solution:
The difficulty of the failure is that the customer stores the file on the system. Because the operating system will generate a large number of temporary files each time, these files are likely to cover the deleted data.It is obviously impossible for this fault to use software scanning. Customers have also verified it. After positioning the “keywords””