How to Recover Deleted Partitions on Windows 10/11

Did you accidentally delete a partition on your Windows PC? Don’t worry; it’s not the end of the world! Deleting a partition prompts the system to unassign that location on the hard drive, making this “new” memory section available for overwriting. However, if you’ve deleted a partition by mistake and this disk section remains untouched, the probability of recovery is pretty high.

Scenarios for Partition Recovery on Windows 10/11

Almost all instances of partition deletion fall into one of these three scenarios. Read along for actionable steps specific to each scenario.

Scenario 1: The Partition Probably Just Vanished but Isn’t Deleted

You read that right! Some essential system partitions like recovery partitions, boot volumes, and OEM partitions are undeletable. However, you can delete most of the other partitions. In Disk Management, if you hit a grey wall when trying to delete a partition, it’s undeletable. However, if you’ve accidentally removed it, there are ways to ‘undelete’ the partition.

Method 1: Assign a Drive Letter

Sometimes, File Explorer denies the existence of a particular partition. However, Disk Management might have a different say on this. Head over to Disk Management and check if there’s some space consumption for the partition. This usually happens when the partition isn’t assigned a letter in Disk Management.

Here’s how can assign a drive letter:

1. In Disk Management, right-click the partition and select “Change Drive Letter and Paths.”
2. Click on the Change button.
3. Check the “Assign the following drive letter” option. Now, pick a letter.
4. Click on okay > okay.

Now, head over to File Explorer to check if you can access the partition. What if you still can’t see the partition?

Method 2: Restore Unallocated Space to the Partition

If the partition is still undiscoverable, it probably became unallocated space. In Disk Management, under the Disk Volume split up, look for the unallocated tab, and do the following:

1. Right-click on the unallocated tab.
2. Select “New Simple Volume” and hit Next > Next.
3. Click on Next > Next and specify the volume size.
4. Select “Assign the following drive letter” and pick a letter.
5.  Click on Next and select “Do not format this volume:”
6.  Click Next > Finish. Now, the unallocated partition becomes a RAW partition.

Scenario 2: Recovering Specific Files from a Deleted Windows Partition

If any of the above methods didn’t work, a partition actually did get deleted.

Enter data recovery tools. These tools boast powerful scanning algorithms that delve deep into your hard drive, retrieving deleted files and folders.

Most partition recovery software operates on a consistent principle: First, choose the disk where you either deleted a partition, formatted it, or removed crucial files. After initiating the scan, simply wait for it to complete. Once done, review the results and retrieve the files that matter to you.

Here’s a super quick guide on how you can get started:

1. Download and install Disk Drill on your PC or laptop.
2. Connect the hard drive to your computer and launch Disk Drill. If the deleted partition is located on the internal drive, you can skip this step.
3. Select the hard drive that contains the deleted partition you want to recover. Alternatively, you can select the exact partition instead of the whole drive.
4. Click the “Search for Lost Data” button to initiate a scan of the hard drive or partition.
5. Wait for the scan process to finish.
6. Preview recoverable files and mark the ones you want to recover.
7. Click the “Recover” button to begin the recovery process.
8. Select a location for your recovered files and wait for the recovery process to complete.

Scenario 3: Repairing the Master Boot Record for Proper System Boot-Up

If you’re faced with boot-up issues on your computer, it’s often linked to problems with the partition table or the Master Boot Record (MBR). While this might not be about recovering an entire deleted partition, it’s crucial for ensuring your system starts up correctly.

Data recovery tools can come to the rescue in such situations, helping repair these critical components. For instance, if you’ve ever encountered the alert “Invalid Partition Table” during boot-up, it’s a clear sign of a corrupted partition table preventing the system from booting. We understand that such situations can be highly stressful. To assist you, we recommend a tool that effectively addresses these issues without any cost.

1. Download and install the tool on another working computer as your current system wouldn’t boot because of the corrupted Master partition table.
2. Run the application, and Connect an empty USB drive to the computer. Now, click on “Make Bootable Media.” This function essentially loads Windows (along with the recovery tool) onto the USB drive and makes it “bootable.”
3. Connect the bootable USB to the affected computer. In BIOS, change the boot order and choose to boot your computer from the USB drive. Upon logging in, AOMEI Partition Assistant runs automatically.
4. On the home screen, right-click on the system disk and choose “Rebuild MBR.”
5. Now, choose the appropriate MBR based on your Windows OS version, and hit “Okay.”
6. Now “Apply” and “Proceed” as illustrated in the image below:

Disk Partition & Volume Types: 101

Here’s an ultra-stripped-down and raw definition of a disk partition: It’s simply a chunk of a disk.

A partition is merely a disk segment bearing a specific size set during its creation. Resizing a partition is possible, but it could lead to data deletion.

Regarding the screenshot above, disk partitions are discreet sections of storage that exist independently. As a result, you can even run multiple operating systems on the same device.

The All-Important Partition Table

Windows maintains a partition table that describes all the partitions on a disk. Your computer loads and reads the partition table to identify which partition has an active operating system.

A storage medium gets subdivided by the partition table, which uses units of sectors, heads, and cylinders. Partitions usually have a file system that gets created on formatting a partition. Some standard file systems of Windows are:

• FAT32
• NTFS
• exFAT

The Master Boot Record (MBR) or the GUID Partition Table (GPT) is a particular location on the storage device that houses the partition table.

No, Volumes and Disk Partitions Aren’t The Same

A volume is a storage device like a CD-ROM, USB drive, or a floppy disk formatted to store files and directories. Upon mounting a storage device, you are greeted with that sweet Windows notification sound and an alert saying, “USB Drive connected” – this is a volume.

To understand better, disk partitions (C: drive or D: drive) are subsets of a volume (HDD or SDD).

Common Causes of Partition Loss

Here’s a list of common culprits behind deleted partitions:

Now that you’ve gone through the steps in the recovery section above, you should have a better understanding of how to recover a deleted partition on Windows 10 or 11. If you still have questions or need further insights, continue reading for more details on partition recovery and the technical aspects involved.

The Purpose of a Recovery Partition and Its Connection to Deleted Partitions

A recovery partition is designed to help restore systems to an OS’s factory settings in case of abrupt system failure. Moreover, this partition has no assigned drive letter.

There are two significant types of Recovery Partitions:

• The default Windows Recovery Partition – This occupies a negligible volume of disk space.
• The OEM Recovery Partition – created by computer manufacturers (HP, Dell, or Lenovo). This amounts to a significant disk space volume as it contains various manufacturer settings and driver configurations for restoration to default settings.

Now, we are going to throw some light on a much-debated topic: Recovery Partition Deletion.

How and When to Delete a Recovery Partition

There are two methods to do so:

• First method: Diskpart
  1. Windows has an in-built utility called Diskpart. In Command Prompt, type “diskpart” and then type “list disk.”
  2. Select the disk.
  3. Now type “list volume.”
  4. Look for the “recovery” label, and select that volume. It’s volume 1 in this case. To select a volume, type “select volume n,” where n is the partition number you want to delete.
  5. Now, type “delete volume 1.”
  6. Now, the partition gets deleted. Restart your computer once the deletion process is completed.
• Here’s the second method: Using a USB Drive
  1. Apparently, while creating a USB recovery drive, there’s an option in the wizard for deleting the recovery partition.
  2. Select the “Delete the recovery partition.” Then, click on “Delete:” This removes the recovery image and frees up space on your computer.

FAQs: Addressing Common Queries

Key Takeaways

A deleted partition isn’t necessarily a data catastrophe.

In most cases, the partition probably never got deleted. You can reassign this “vanished” partition back into existence. On the other hand, if you encounter deletion, there are techniques to either pick and restore selected files or entire partitions.

Windows offers a native “Diskpart” feature that helps recover partitions. Additionally, some commendable third-party data recovery tools offer unique partition recovery functionalities.