Two checkboxes apart in the format dialog, two completely different outcomes for your data. Quick format and full format sound like short and long versions of the same job — they are not. Here is what each one physically does to the disk.
Ask a room of computer users what formatting does and most will say it erases everything. That answer is half wrong, and the half that is wrong is the half that decides whether your photos can come back. Windows offers two kinds of format, and they treat the data area of the disk completely differently. Knowing which one happened to your drive tells you — before any software is opened — whether recovery is realistic or a waste of hope.
👆 Quick format rewrites the index and leaves the data; full format overwrites the data itself with zeros (panel recreated as an illustration)
A quick format creates a fresh file system: a new, empty table of contents, new boot structures, and a surface check that it can write to the disk. It does not go through the drive erasing file contents. Your photos, documents and videos are still physically there — the drive simply no longer knows their names or locations. That is why a deep scan can find them afterwards, often with generic names, and why the recovery window closes only as new data gets written over the old areas.
Untick the quick option and modern Windows does a far heavier job: it writes zeros across the entire partition as it formats. Every sector of your old data is replaced. No recovery software — at any price — can read files back from zeros; the information is simply not on the disk any more. One honest footnote: on a very large drive a full format takes a long time, and data in areas the format has not reached yet is still there if the process is stopped early. Once it completes, that drive is finished business.
If the format finished in seconds or a couple of minutes, it was quick — a full format of a large drive takes far longer, often hours. If the drive was formatted during a Windows installation, the setup's format step is the quick kind. If someone used a dedicated wiping or secure-erase tool, treat the data as gone, because that is the tool's entire purpose. And if the drive is an SSD, the format type matters less than you would hope: TRIM usually erases the freed blocks after either kind of format, as the SSD guide in this set explains.
Several operations are full-format equivalents even when they do not say format. DiskPart's clean all zeros the whole disk, while plain clean removes only the partition table. Factory secure-erase utilities from drive makers overwrite or electronically wipe the drive by design. Shrinking, deleting and recreating partitions with new data written over them progressively covers the old areas too. When judging any case, ask what actually touched the data area — that, not the menu it was launched from, is what decides recovery.
The channel's test formats a drive on camera and scans it — the perfect demonstration of the quick format behaviour explained here.
▶️ Watch Full VideoThe format step inside Windows Setup is a quick format — but the installation then writes gigabytes of new Windows files onto the drive, which overwrites a large part of the old data. Recovery is possible for whatever areas the new Windows did not land on, and the odds drop the longer the new system runs.
No. A full format in modern Windows overwrites the partition with zeros. Labs recover data from physically damaged drives whose data area still exists — they cannot recover data that was overwritten, and any service claiming otherwise should not be trusted with your money.
Possibly. The areas the format had not reached yet still hold their old data. Stop using the drive immediately and scan it from another machine — whatever remains is whatever the zero-writing had not reached.