Windows partition tutorials & storage troubleshootingCheck backups and recovery keys before modifying a disk
Migration and backups

Restore partitions after accidental deletion

Deleted partition entries may sometimes be reconstructed if disk contents have not been overwritten; stop writes immediately.

Quick answer: Deleted partition entries may sometimes be reconstructed if disk contents have not been overwritten; stop writes immediately.

When this approach makes sense

Distinguish data-only copying from migration of a bootable Windows installation. A clone is not a substitute for a separately restorable backup. This guide explains how to approach restore partitions after accidental deletion without assuming every disk or license is identical.

How to proceed on Windows

  1. Step 1. Disconnect or unmount the affected drive where possible.
  2. Step 2. Avoid formatting, creating partitions or installing recovery software to the same disk.
  3. Step 3. Make a sector-level image if hardware condition permits.
  4. Step 4. Use a reputable partition recovery tool on the image and validate results.
Important: Recovery is not guaranteed, and repeated write attempts reduce the chances. Back up important data to a different physical drive before changing a live partition or filesystem.

How to verify the result

Recovered partitions mount and important files pass sample checks. Reopen Windows Disk Management to compare the resulting layout with the plan. If the operation involved the system disk, also confirm Windows starts and that your backup and recovery options remain available.

If the result is different

Stop and capture the error or unexpected disk map before retrying. Check the drive's health, file system, encryption status and available capacity. If files are missing or the disk appears RAW, avoid writing to the volume and consider an image-based recovery workflow.

Free versus paid edition

Some advanced functions, especially OS migration, boot media and data recovery, may require a paid edition. Verify the current MiniTool comparison page. This page does not claim every shown operation is included in every edition, and it does not claim to have tested a particular PC or storage device.

Frequently asked questions

How do I restore partitions after accidental deletion?

Deleted partition entries may sometimes be reconstructed if disk contents have not been overwritten; stop writes immediately. Start by checking the disk layout and creating a verified backup before applying any changes.

Can this operation cause data loss?

Yes, any partition or filesystem change can have risks from incorrect disk selection, power loss or hardware errors. Recovery is not guaranteed, and repeated write attempts reduce the chances.

How can I tell if the result is correct?

Recovered partitions mount and important files pass sample checks.

References and further reading

Related Windows guides

Need the Windows tool?

Verify the installer signature and choose the correct edition before modifying a disk.

Installation notes