Accidental DiskPart clean
Microsoft documents that DiskPart clean removes partition or volume formatting from the selected disk. On GPT media, the operation removes primary and backup partition-table information; later setup steps cause additional overwrites.
Understand the symptom
After ordinary clean, filesystem structures and file content may remain at their previous offsets even though the operating system sees unallocated space. Recovery reconstructs partition boundaries from surviving boot sectors, filesystem metadata, signatures, capacity, and known volume history. Any new partition, format, or installation can overwrite those anchors and user data.
What you may see
The partition map is no longer available to Windows.
Volumes cannot be mounted without partition references.
This behavior is consistent with metadata removal rather than a full-sector overwrite.
The installer sees no accepted partition layout.
Protect the source
New metadata can replace the original start sectors.
Boot sectors, allocation data, and root structures can be replaced.
Setup rapidly overwrites recoverable user regions.
Do this now
Shut down and remove the affected disk from normal use.
Note whether clean or clean all ran and whether convert, create, or format followed.
Write down prior partitions, sizes, labels, operating systems, and encryption.
Perform reconstruction and scanning against a separate protected copy.
NEPFOSYS process
NEPFOSYS determines which commands ran and what metadata regions changed.
Surviving filesystem structures are used to infer original starts, ends, and types.
Requested data is recovered to separate media without rewriting the source.
A clear next step
Start a case with the exact symptoms, incident timeline, prior attempts, encryption details, and the files that matter most. NEPFOSYS will route the case to the appropriate DFW intake or nationwide mail-in path.
Start with a case reviewQuestions, answered
No. Clean removes disk-layout information; clean all writes zeros across every sector and is much more destructive.
Do not guess on the original. A small offset difference can overwrite filesystem metadata or mis-map the volume.
Preserve the recovery key and encryption details. Reconstructed sectors still require authorized decryption.
DFW local · Nationwide mail-in