Data recovery after formatting a drive

Do not reuse a formatted drive for new files. Recovery is possible in some cases, but it is never guaranteed.
Identify what actually happened
An empty folder after formatting does not reveal what remains on the storage device. Drive type, formatting method, subsequent use and encryption all matter. Record the application used and whether a new operating system was installed. If the system merely asks you to format a drive, accepting is not a way to preserve its files.
Preserve the current state
Do not format again, create new partitions or restore a backup onto the affected drive while missing files remain unresolved. These actions can change remaining data. Files found by recovery software must also be saved elsewhere.
- Do not install a system or applications on the affected source.
- Get an assessment first when it holds the only important copy.
Understand the limitations
HDDs and SSDs can behave differently after the same action. On an SSD, TRIM and internal processing may make deleted content inaccessible. Overwriting adds another serious limitation. A recovered filename or preview list does not establish that the complete file contents will be usable.
Prepare for an assessment
Provide the drive model, capacity, file types and priority folders. Describe software already tried and its results. The assessment should distinguish readable files from damaged or missing material. Keep recovered copies on separate storage, then check important content carefully rather than assuming success because a few sample files open.
Further reading
This article is a general guide. Follow the manufacturer’s instructions for your particular device.
