How to Recover Deleted or Lost Partition in Windows 10

Updated by

Tracy King 

Written by

Daisy 

Updated on Jul 01, 2026

Many users are facing data loss caused by accidental deletion or other improper operations. There is a real case from Reddit:

"I accidentally deleted the partitions while upgrading to Windows 10. How to recover the data? I followed the steps in this video about upgrading to Windows 10. He said that I should delete both partitions and so I did. But what I didn't know is that it deletes all the data in my hard drive, which is a bummer. How the hell do I recover all of those data?" - From Reddit

In this post, you are going to learn how to perform lost partition recovery with reliable partition recovery software - EaseUS Partition Master. Besides, you are going to learn how to recover deleted partition with TestDisk. First, let's compare the two ways so that you are able to make a wiser choice:

For beginners, EaseUS Partition Master is the best choice. Its clear interface makes it easier to recover lost partitions. TestDisk is relatively difficult to use. And it requires many command lines during the process. If you don't have rich experience in computing, data loss easily occurs. To make things easier, you need EaseUS partition recovery software. Let's learn how.

Tip 1. Four Steps to Recover Lost/Deleted Partitions

EaseUS Partition Master provides Partition Recovery Wizard to help you recover deleted or lost partitions with ease. With it, you can recover lost or deleted partitions easily. Besides, this disk management tool has many excellent features.

Download this tool and recover deleted partitions with simple steps.

Step 1. Open EaseUS Partition Master and click "Partition Recovery". Select the target disk with your lost partition and click "New Scan".

Step 2. Wait patiently to let the software execute "Quick Scan" and "Full Scan" operation. It will mark your deleted partition as "lost" as the Status section. Select the lost partition, and click "Recover".

You can also double click on the partition you're looking for to preview its content and click "OK" to confirm.

Step 3. Wait patiently and click "Done" when the partition recovery process completes.

See? It is pretty easy to restore lost partitions with EaseUS partition software. Alongside recovering normal data partitions, users can also apply this software to recover deleted system reserved partition or even clone system reserved partitions to another drive.

Tip 2. How to Recover a Lost Partition in Windows

This method is much more difficult than Tip 1. If you are confident in your technical ability, follow this method. You need to download TestDisk - an open-source program that is created to get back lost partitions. Follow the steps below to recover the partition in Windows

Step 1. Download and run TestDisk.

Step 2. Select Create a new log file.

Step 3. Choose your hard drive from the list.

Step 4. Set your drive's type of partition table.

Step 5. Select "Analyse".

Step 6. Select "Quick Search".

Step 7. Highlight the broken or missing partition.

Step 8. Press "A".

Step 9. Choose "Done".

If the two ways work well on your issue, share this article and help more users who accidentally lose or delete partitions.

Conclusion

With the help of these solutions above, you can recover lost partition in Windows 10. If you want to recover lost/deleted data on the partition, you need to turn to EaseUS data recovery software. Besides, I always suggest that you create a backup for your partition in case anything happens. A back image makes future recoveries easier.

Recover Deleted or Lost Partition FAQs

This article focuses on recovering deleted or lost partitions and provides two ways for you. In this part, you will see some questions and answers coming with how to recover the deleted or lost partitions.

1. Can a deleted partition be recovered?

Recovery of deleted volumes is very important for data security. Fortunately, you can use a professional partition recovery tool to recover a deleted partition and thus recover the data on it. EaseUS Partition Master can help you easily recover accidentally deleted or lost partitions.

2. What happens when a partition is deleted?

If you delete a partition or volume on a disk, the space it occupies will be freed and marked as unallocated space. You can then use this unallocated space to create a new partition or extend another partition on the same disk.

3. Why is my partition lost?

Reasons for partition loss or disappearance can be caused by accidental deletion, loss of drive letter, virus attack, corrupted partition table, and other unknown factors. When your partition is missing a drive letter, you won't be able to see it in Windows File Explorer. You can try to assign it a drive letter to remove this error.