Trustworthy file repair program for restoring corrupted files on Windows 10

In fact, manually repairing files using a hex editor is best file repair program, you can use this technique to manually repair slightly damaged files, such as those with missing headers; although this repair method is relatively advanced, it is free of charge.

You need to copy the header bytes from an intact reference file and overwrite the damaged header of the corrupted file. This method only works for files with damaged headers and cannot repair files with corrupted internal data.

Instructions: Download HxD. Open a known-good file of the same type. Copy the first 100–200 bytes from that intact file. Open the corrupted file in the software and paste the header from the intact file to overwrite the corrupted file’s header. Save the file and try opening it.

Its advantages include: it can effectively fix header loss issues commonly caused by sudden power outages; and the software supports both installed and portable versions.

Its disadvantages include: the process is relatively complex; it cannot recover files whose internal data is already corrupted; and incorrect edits may cause further damage to the target file.

Notes

• Be sure to copy the corrupted file before editing; do not modify the original file directly.
• The reference file used to copy the file header information must be in exactly the same format as the file in question.
• Do not modify the byte content outside the file header.
• File recovery is not guaranteed.

This manual hexadecimal editing method serves as another practical best file repair program alternative to specialized file repair tools. It is suitable for repairing cases where only the file header is missing due to a power outage, but this method will be ineffective if the file’s internal data has already been corrupted.

If you don't want to use commercial recovery software, you can try this little trick. Since a mistake could result in permanent file loss, be sure to back up your files beforehand.