thedog
Primarily, the likelihood that the recovered files will be corrupted depends on the following factors:
- Are you using a reliable data recovery tool?
- Whether the files are already damaged in the memory blocks of your storage device.
That is why, we advise you to use trusted data recovery programs. You can get familiar with them by checking out our review - https://www.handyrecovery.com/best-data-recovery-apps.html. Most of these tools offer trial versions so you can check whether the files you recover using one of those are also damaged.
When it comes to recovery of the damaged files, it all depends on the file type. There is no universal software or service to repair damaged files regardless of the file type. Some file types can be recovered with the help of how-to instructions (for example, in some situations, mp4, mov, avi video files can be fixed with VLC player tools), while recovery of the others requires specialized tools.
