How to Check Thousands of Recovered Files for Corruption Before Wiping the Original Drive
If you have recovered or migrated thousands of files, do not wipe the original drive just because the copy completed without errors. In this r/datarecovery case about checking roughly 7,000 transferred files, the user specifically wanted to know whether files such as DOCX, PPTX, photos, videos, and 3D files were actually readable—not merely copied byte-for-byte.
Verify the Files by What Their Format Is Supposed to Do
Use a Small Set of Practical Checks
- Documents: open a sample of DOCX/PPTX files and confirm text, pages, images, and formatting render normally.
- Photos: open full-size files, not only thumbnails, and confirm they decode completely.
- Videos: scrub through the timeline and check the beginning, middle, and end.
- Project or archive files: test whether the native application can parse or extract them without an error.
For a very large collection, start with the most important folders and a representative sample from each file type. If the original drive may be failing, avoid unnecessary writes to it while you verify the recovered copy.
Repair Only the Files That Actually Fail Validation
Repairit File Repair is designed for supported files that are present but corrupted—for example unreadable Word, Excel, PDF, PowerPoint, ZIP, and other supported document/project formats. It should not be treated as a general scanner that certifies every file on a drive.
Before Wiping the Source:
Keep the original drive unchanged until your priority files have been opened, previewed, or otherwise validated. If important files are missing, 0 KB, or obviously incomplete, return to recovery rather than assuming file repair can recreate the missing payload.
