How to Recover Missing/Lost/Deleted Partition Without Losing Data in Windows 11 and Windows 10

Partitions divide a hard drive into multiple independent areas, making it easier for users to organize and manage files. However, sometimes, due to misoperations and other reasons, they can be lost. It can be quite frustrating and troublesome to lose partitions, especially if you have important files saved there. If you encounter such a situation, take a look at the information below. It will help you easily restore a partition without losing data, as well as repair a damaged partition.

Table of contents

Part 1. What Causes Partition Loss?

Part 2. Is It Possible to Recover a Deleted/Lost Partition?

Part 3. How to Perform Partition Data Recovery and Recreate Partition (100% Rescue Important Files)

Part 4. How to Restore the Deleted/Lost/Missing Partition and Its Data Directly (Sometimes, some files may be lost)

Part 5. External Tips: RAW Partition Recovery and Repair

Part 6. How to Avoid Disc Partition Loss?

Conclusion

Frequently Asked Questions and Answers

Part 1. What Causes Partition Loss?

Before performing lost partition recovery in Windows 11/10, you need to find out the specific reasons for the partition loss to find the correct solution more quickly. Some reasons are briefly summarized:

• ⛔ Due to file system errors, sudden power failure, virus attacks, or constant plugging and unplugging, the partition table may become damaged, fragmented, or corrupted, resulting in the loss of the partition.
• 😅 Misoperations from users, for example, an incorrect Diskpart Clean command, repartitioning a hard drive, or resizing a partition, can all cause existing partitions to be deleted.
• 🧩 A partition may have too many bad sectors, preventing your computer from recognizing it and displaying it as unallocated space.
• ⚠️ A partition may disappear from File Explorer due to a damaged hard disk driver, incorrect/missing drive letter assignment, or software conflicts.
• ✏️ Windows operating system upgrade causes disk changes, and more.

Part 2. Is It Possible to Recover a Deleted/Lost Partition?

Whatever the reason for partition loss, if you want to avoid the worst-case scenario of losing these files forever, you need to start disc partition recovery as soon as possible. Is there a solution? The answer is yes.

What is the principle? A Windows computer identifies partitions through partition tables and boot sectors. When you lose a partition on your computer, the system only deletes the partition information (such as partition type, size, location, file system, etc.) from the partition table instead of completely deleting the area occupied by the deleted volume. So the question is, how to restore a Windows partition and its data? Read the details in Part 3 and Part 4.

Part 3. How to Perform Partition Data Recovery and Recreate Partition (100% Rescue Important Files)

A partition and its files are like an album and its photos: which is more important to us is self-evident? It is the main reason why we prioritize this solution. After all, there are many ways to recreate a partition after it's lost, but lost data is irreversible. Here, we'll guide you through how to rebuild a partition after successfully recovering these files.

To ensure the highest data recovery rate for the lost partition, you need to pay attention to the following matters after you find that your partition is lost:

• ♻️ Do not reformat the disc where the partition is lost.
• 📝 Do not add new items to the existing partitions.
• 🛠️ Do not rebuild the partition table.

Next, you should get a professional file recovery program for your computer to recover partition data. As you search, you will get several recommendations. Here, we take iBeesoft Data Recovery as an example, showing you how to use it. It has the following specific capabilities to address file loss issues in any situation.

Here are the simple steps for partition data recovery and recreating it:

1. Click the Download button to get the installation package of iBeesoft Data Recovery software. After that, install it on your computer. The software is virus-free.
2. In the main window, select the lost partition and click "Scan". You can also set it up with filters for specific file types to scan, or just let it go to search for all the lost files by default.
3. You can see all the recoverable files are listed in the left panel with categories. If the whole partition is lost, the partition is listed in the left panel as well. Expand the panel on the left side and check out the found files. You can preview all the recoverable files. If you're worried about whether the recovered videos and pictures are openable, just calm down. During the scanning process, damaged videos and pictures are fixed by iBeesoft Data Recovery.
4. Choose the needed files and click "Recover" to save them to another disc, not to the one where the partition is lost, preventing the data overwritten issue from happening.
5. After all files in the lost partition have been recovered, right-click the Start icon at the bottom of the screen and select Disk Management.
6. Find the hard drive where the lost partition is located, right-click the "Free Space" and choose "New Simple Volume," then follow the wizard to restore the partition. When this disc has multiple "Free Space" areas, the one that matches the size of the lost partition is selected.

Part 4. How to Restore the Deleted/Lost/Missing Partition and Its Data Directly (Sometimes, some files may be lost)

In theory, it is the part with the solutions most users are looking for. The following methods can directly restore the lost partition to its original state, including the data within. You might be wondering why we don't recommend trying them first. It is because they only work when the partition table information is intact. If you're willing to take the risk and are lucky enough, these methods are also possible solutions.

Method 1. Use iBeesoft Disk Partition Wizard

Put simply, if you have used EaseUS Partition Recovery, then you must know all of its features, while iBeeoft Disk Partition Wizard is an advanced version of EaseUS Partition Recovery. It comes with so many useful features. In addition to handling lost partitions, it also offers disk management, cloning, RAW partition repair, and more.

To recover a deleted or lost partition without losing data, please follow these steps:

1. Download and install iBeesoft Disk Partition Wizard. If you have multiple discs, do not install it on the one where the partition was lost.
2. Click "Partition Rescue" in the left menu, then select "Recover Partition " on the right side of the page and click "Next."
3. Select the hard drive containing the deleted or lost partition and click "New Scan."
4. When the scan is complete, select the partition marked as lost based on size. After confirming, click "Recover." If your lost partition is not listed, click "Full Scan" in the lower left corner of the page. iBeesoft Disk Partition Wizard will use multiple scanning algorithms to identify the lost partition further, but it will take more time.

Method 2. Use TestDisk

TestDisk provides another direct lost partition recovery method. It only examines the disk structure and compares it to the existing partition table. Due to its single algorithm, TestDisk's ability to search for lost partitions is not as good as iBeesoft Disk Partition Wizard.

1. Open the official TestDisk download page. Select "Windows 64/32-bit" based on your operating system.
2. After the download is complete, extract all files from the zip file. Then, find "testdisk_win" and double-click it to launch the program.
3. Use the up and down arrow keys on your keyboard to select "Create" and press Enter.
4. Select the hard disk where the partition is lost and press Enter.
5. Select the partition table type and press Enter. The default is usually correct.
6. Select "Analyze" and press Enter.
7. After confirming the current partition structure, select "Quick Search" and press Enter.
8. Choose the deleted or lost partition and press Enter.
9. When all disk partitions are listed, select "Write" and press Enter to restore the partition. If some are still missing, please choose "Deep Search."

Method 3. Use the Diskpart Command

When your partition is lost due to the volume label, drive letter, or partition name, you can quickly restore it using the Diskpart command. Here are the steps:

1. Press "Windows" + "R" keys to open the "Run" dialog box.
2. Type "diskpart" and Enter.
3. In open window, type the following commands one by one and press Enter after finishing each line.

   list disk

   select disk # (#refers to the hard disk where the partition is lost)

   list volume

   select volume # (# refers to the lost partition number)

   assign letter=# (# refers to the assigned drive letter, which can be replaced with any available drive letter)

4. Exit the command prompt and check whether the lost partition has been successfully recovered.

Method 4. Use the Disk Partition Recovery Service

When you have tried all the solutions described in Sections 3 and 4 and still haven't been able to recover a deleted/lost partition without losing data, then another alternative is to seek the help of a technician. These services are particularly suitable in the following situations:

• 💔 The hard drive shows signs of physical damage, such as frequent freezing, overheating, or excessively damaged sectors.
• ⚜️ The files on the lost partition are so important that the cost of hundreds of dollars is worth it.
• 🧑‍⚕️ You prefer to handle everything with rigor and believe that professionals should handle professional work.

In this case, you can choose a data recovery agency near you by searching.

Part 5. External Tips: RAW Partition Recovery and Repair

It's much easier to restore a RAW partition than a lost partition. Because it and its data still exist, but some information in the file system is missing, or there's an error that prevents you from opening it. Here are the methods you can try.

Method 1: Use the partition's "Error Check" Option

1. Click to open "Computer" or "My Computer."
2. Right-click the RAW partition you want to check and select "Properties."
3. Click the "Tools" tab and click the "Check" button. The system will prompt you to scan and repair file system errors on the volume if there are any.

Method 2: Use a Professional Tool

When using iBeesoft Disk Partition Wizard to recover a deleted or lost partition, you should have seen the "Repair RAW Partition" option. Simply click it and follow the prompts to complete the process.

Part 6. How to Avoid Disc Partition Loss?

To avoid partition loss, you can take the following precautions:

• 📋 Use partition tools carefully: When using programs to perform disk partitioning, merging, resizing, etc., be careful and cautious to avoid partition loss due to misoperation. It is best to back up important data before the operation.
• 🧰 Regular maintenance and inspection: Regularly check the health status of the hard disk, including file system inspection and SMART data scans, to ensure the integrity and stability of disc partitions.
• 🪫 Avoid power problems: Make sure the computer is connected to a reliable power source and use devices such as UPS to protect the computer from sudden power outages or voltage fluctuations, which can reduce partition loss caused by power problems.
• 🛡️ Avoid viruses and malware: Keep the computer system and security software up to date, and perform virus scans and malware cleanups regularly to prevent viruses or malware from damaging the disk volumes.
• 💽 Avoid physical damage: Try to avoid dropping, squeezing, or getting the hard disk wet to avoid hard disk partition loss that may be caused by physical damage.

Conclusion

Although accidentally deleting a disk partition is torturous. By learning and flexibly applying the above methods and tips, you may be able to restore the lost partition and files in it! I hope the above content can provide some help and protect the safety of your computer data!

Frequently Asked Questions and Answers