Restore Accidentally Deleted Partition in 2 Key Steps on Windows 10/11

Have you accidentally deleted a partition while managing disk space? This is a common issue you can resolve. This article will present a concise guide to restoring accidentally deleted partitions on Windows 10/11, addressing both novice and intermediate users.

By @Aria
Last Updated July 14, 2025

What Happens If I Delete a Partition?

Accidentally deleting a partition while managing disk space is a common issue for many novices using Disk Management. So, what happens when you delete a partition from a disk? You essentially remove the file system structure that Windows uses to access the data within it. The following changes will occur in Windows.

  • The storage space becomes "Unallocated" or "Free space" on the drive. It’s no longer associated with a drive letter and it won't be displayed in Windows File Explorer.
  • The files on the partition can't be accessed by the operating system. File Explorer will not show the drive.
  • If you delete a system or boot partition (EFI Partition), your computer will become unbootable. You'll need a bootable media to boot the computer and recover data from EFI partition.

Actually, deleting a partition removes its logical structure but doesn’t immediately erase data. Immediate action for recovery can often restore the accidentally deleted partition and its contents, especially if the disk hasn’t been used since deletion. So, if you’ve accidentally deleted a partition, don’t create new files or format the disk right away. Instead, your priority should be to recover the deleted partition and its contents before it’s too late.

How to Restore Accidentally Deleted Partition on Windows 10/11

As mentioned above, when a partition is deleted, the files on it will be cleared and become inaccessible. Therefore, there is no doubt that the most important thing is to first recover the lost data on the partition. The second step is to restore the deleted partition itself. This section will present a detailed tutorial on recovering deleted partitions starting from these two key steps.

Step 1. Recover Data from the Deleted Partition

If you have backed up the files on the deleted partition, you can directly restore them from backups—whether via Windows' built-in tools like File History and Backup and Restore, external hard drives or cloud backup services.

However, does data become unrecoverable when no backups exist? Certainly not! Professional data recovery software like MyRecover is specifically designed for such scenarios, allowing you to retrieve data from deleted partitions without relying on any backups. Notable among MyRecover's strengths are the following standout capabilities.

✅No Command Line Needed – Simple GUI (graphical interface) for easy file recovery.

✅Supports over 1,000 File Types – Including documents, photos, videos, audio, archives, and Outlook data files.

✅Handle More Data Loss Scenarios Recover from formatted drive, emptied Recycle Bin, system crash, virus attack, etc.

✅500+ Devices Support – Recover files from all types of devices like SSD, HDD, USB flash drive, SD card, cameras and more.

✅OS Compatibility – Work not only on Windows 11 /10, but also on Windows 8.1/ 8/ 7 and all Servers.

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4 Steps to Recover Data from Deleted Partition

1️⃣Download and install MyRecover on your computer from the secure channel, avoid installing it on the hard drive with lost files.

2️⃣Launch it and select the "Partition lost recovery" section. Choose the deleted partition from which you want to recover data and click "Scan" to start the process.

3️⃣Choose the files you wish to recover from the recoverable lists and click "Recover".

4️⃣Select a different location to save the recovered files.

After the process completed, the message "Files have been recovered successfully" will pop up. You can check them by clicking the destination folder.

Step 2. Restore Deleted Partition by Creating a New Partition on the Unallocated Space

Once a partition is deleted, it shows up in Disk Management as "Unallocated Space". You can restore an accidentally deleted partition by creating a new one on this space. 

Windows Disk Management makes it easy to create a new partition using simple clicks.

1. Press "Win + X" and select "Disk Management".

2. Locate the unallocated partition on your disk, right click it and choose "New Simple Volume".

3. Click "Next" and assign a new drive letter.

4. Choose a file system based on your needs and click "Finish" to start the process. This will restore the partition and make it accessible again on your system.

Then, you can copy the recovered files from the deleted partition via MyRecover to the new partition.

Final Words

Accidentally deleting a partition can seem catastrophic, but if you act quickly and follow the right steps, there's a strong chance you can restore the deleted partition without losing your data.

When recovering data from a deleted partition, it is crucial to choose a reliable tool like MyRecover. It does not write data during the recovery process, which maximizes protection against data overwriting. Additionally, if you have more advanced needs, MyRecover offers the Professional and Technician editions. These editions allow data recovery from crashed systems and support unlimited data recovery quota.