Partition Recovery
Get back a lost, deleted, or RAW partition and the files on it, before anything new lands on the disk.
Written by the Refindo Recovery Team · Updated
A missing partition usually isn't a missing-files problem. When a partition gets deleted, goes missing, or turns RAW, the thing that actually broke is the small map at the start of the disk, or the file system header that says where the volume begins and how to read it. The files themselves are still sitting there. As long as Windows or macOS can still see the physical disk, Refindo can scan the area where the partition lived, rebuild its file system, show you what it found, and recover it to another drive.
What this covers
- For deleted partitions, lost partitions, and partitions that show as RAW or unallocated
- Reconstructs the file system of the missing volume to recover its files
- Supports NTFS, FAT32, exFAT, and APFS partitions on Windows 10/11 and macOS 12+
- Deep Scan reads past a damaged partition table and file system header
- Preview images, PDF, text, and selected Office files before recovery
What happens when a partition disappears
Recovery Workflow
- Stop using the disk. Do not create, resize, format, or repair any partition on it.
- Open Disk Management or Disk Utility, confirm the disk shows up, and find the missing or unallocated space.
- In Refindo, pick the whole disk rather than a single volume so it can scan where the partition used to be.
- Run a Deep Scan and let it rebuild the file system of the lost partition.
- Preview what comes back, save it to a different drive, and only then repartition the original.
Best Practices
- Scan at the disk level, not a single volume, or a missing partition will never turn up.
- When Windows or Disk Utility offers to "initialize" or repartition the disk, say no until you have scanned.
- Recover to a separate drive, never back onto the disk you are scanning.
- If the disk also clicks, grinds, or keeps disconnecting, that is hardware failure. Stop and get help.
What actually breaks when a partition disappears
Every disk keeps a small map right at the start of it, the partition table, written as either MBR or GPT. Each entry in that map records where a partition begins, how big it is, and what kind of file system it holds. So when a partition "disappears," nine times out of ten it is the map that got damaged or rewritten. An entry was deleted, a partitioning tool laid down a new layout, or the boot records the file system depends on got corrupted. The actual files inside the partition never moved. The system just lost the directions to find them.
That is exactly why partition recovery works as often as it does. The scan does not need the original map at all. It sweeps the disk hunting for the signatures of known file systems, rebuilds whatever volume structure it finds, and reads the files back out. It is rebuilding the directions, not the data.
- The partition table records where each volume starts, how big it is, and what it holds.
- Most partition loss damages that map, not the files behind it.
- A scan rebuilds the volume from on-disk signatures, so it does not need the lost map.
Deleted, lost, and RAW are three different starting points
A deleted partition is the cleanest situation. Its entry was pulled from the partition table, so the space now reads as unallocated, but the file system and every file in it are still intact on the disk. Scan that unallocated region and the volume usually rebuilds cleanly. A lost partition is one the system has stopped recognizing, normally because the partition table or boot sector is damaged, so it might show with no drive letter, as an unknown volume, or not appear at all.
A RAW partition is the odd one out: it is still mapped and visible, but its file system header is unreadable, which is why Windows keeps offering to format it and macOS just calls it unreadable. The good news is that all three are usually recoverable, and they call for the same restraint. Do not let the system "fix" the layout by initializing, repartitioning, or formatting, because every one of those writes over the exact structures and data the scan is relying on.
- Deleted: space reads as unallocated but the file system is intact, so it usually rebuilds cleanly.
- Lost: the partition table or boot records are damaged, so scan the whole disk.
- RAW: the partition is visible but its file system header is unreadable, so use Deep Scan.
Why scanning beats rebuilding the table in place
Some tools try to "fix" a missing partition by writing a corrected partition table back to the disk. When the guess is right, the volume pops back into view. When it is wrong, and on a damaged disk it often is, it stamps new structures over the old ones and can turn a recoverable mess into a permanent one. And either way, it means writing to the one disk you most want to leave alone.
Refindo takes the safer route. It reads the disk, rebuilds the lost partition's file system in memory, and lets you copy the files out to a safe spot without ever changing the source. You get your data first. If you want the partition itself back afterward, a real mounting volume, you can repartition or run a repair tool later, once the files are off the disk and there is nothing left to lose.
- Rewriting the partition table in place can overwrite the very data you want back.
- Reading the disk and recovering files leaves the source untouched.
- Rebuild or recreate the partition only after the files are safely copied off.
Recover the Right Way for Your Partition Problem
Part of the disk now reads as unallocated
After a partitioning slip, a resize that failed, or a delete you wish you could take back, a chunk of the disk turns up as unallocated in Disk Management. Do not create a new partition there to "get it back," because a new volume drops fresh structures right over the old one. Leave the space exactly as it is. Scan the whole disk in Refindo so it can find the file system that used to live in that region, and pull the files onto another drive first.
It shows as RAW or keeps asking to be formatted
A partition that nags you to "format the disk," or that shows up as RAW, still has its entry in the partition table. What is unreadable is the file system header. So skip the format. Run a Deep Scan, let Refindo rebuild the file system past the damaged header and lift the files out, and save them somewhere else before you let any repair or format tool rewrite the volume.
A whole drive's partitions vanished at once
Now and then a disk comes back with everything gone, no drive letters, an "unknown, not initialized" prompt, or one big unallocated block where several volumes used to be. Whatever you do, do not click initialize, because that writes a brand-new, empty partition table over the lot. Scan at the disk level so the reconstruction can find each lost volume, recover what matters from each one, and rebuild the layout only after the disk is empty of anything you need.
The partition still opens, but files are missing
If the partition mounts fine and it is only some files that are gone, deleted, or lost after a move, then this is plain file recovery, not partition recovery. Stop writing to that volume right away, since you are still using it. Quick Scan brings files back with their names and folders intact while the metadata holds; Deep Scan reaches further once the directory records are already patchy.
Frequently Asked Questions
What is the difference between a lost and a deleted partition?
A deleted partition had its entry wiped from the partition table, so the space now reads as unallocated even though the file system and the files are still sitting there. A lost partition is one the system no longer recognizes because the partition table or boot records got damaged. Either way, the files are recoverable as long as nothing has overwritten them.
Can I recover files from a partition that shows as RAW?
Usually, yes. RAW just means the system can't read that partition's file system, not that the data is gone. A Deep Scan reads past the damaged header and rebuilds the files from their content. Get them off the disk before you run anything that rewrites the volume.
Should I create a new partition or format to fix the error?
Not yet. Creating, resizing, or formatting a partition writes new structures to the disk, and that can overwrite the data you are trying to get back. Scan and recover first. Once your files are safely on another drive, repartition or format all you like.
Do I recover the partition itself or the files on it?
With Refindo you recover the files. Rewriting the partition table in place is risky on a disk you would rather not touch, so instead it scans the affected area, rebuilds the file system in memory, and lets you copy the files out to a safe spot.
Quick Scan or Deep Scan for partition recovery?
For most partition loss, go straight to Deep Scan. When a partition is missing, deleted, or RAW, the file system metadata is usually damaged or gone, and Deep Scan rebuilds files from their content regardless. Quick Scan only really helps when the partition still mounts and you just deleted files off it.
Does Refindo upload my disk data during partition recovery?
No. Refindo is local-first recovery software. Scanning, preview, and recovery happen on your computer, and recovered files are saved to a separate local destination you choose.
Start with a free scan
Check recoverable files first, then decide whether to proceed with recovery, and save results to a separate drive.