By Stephanie / Last update March 29, 2022

"My HDD is divided into two partitions. I wanted to increase the size of the first partition. I couldn't do it in win7 inbuilt disk management. So, I downloaded a tool to perform. After applying changes, it asked to reboot. Then after about 15 minutes, it froze, nothing happened. I restarted the computer at this point. Then I couldn't get into the second partition. It showed that it's either damaged or corrupted or something like that. Is there any way to recover data from the corrupted partition?"


If partitions are corrupted, it would be difficult to access data, run programs, or start up a computer. In some situations, the partition will be marked as RAW, and the full partition won't be visible in Windows File Explorer. When a partition becomes corrupted, it will show the following symptoms:

“Disk not formatted. Do you want to format now?”

✦ "Sector not found"

“Location is not available”

✦ The file system is displayed as "RAW".

✦ File names contain unidentified characters

Why the partition gets corrupted?

Knowing about corruption is not enough, it’s better to know the root cause that will lead to partition corruption, which helps you to prevent partitions from corruption. Some of the main causes that can lead to partition corruption are:

Improper operation. Computer users often experience this when they use the hard drive inappropriately, like resizing partitions.

✦ Virus or malware attack. It is the most common cause of partition corruption. The severity of the injury depends on the type of virus, which determines whether the data can be recovered.

✦ Insecure software. Sometimes, users would download some insecure software from the Internet, which could lead to partition corruption.

✦ Unexpected system shutdown. The operating system would shut down unexpectedly if there is an abrupt variation in the power supply.

✦ Bad sectors or tracks. If there are bad sectors or tracks in partitions, it can cause the partition to become inaccessible.

How to recover data from corrupted partition in Windows 11/10/8/7?

Before repairing the corrupted partition, the first thing you need to do is to recover data from the corrupted or damaged partition. It’s better to use professional partition data recovery software. Here we take Recoverit as an example to display how to recover data via a third-party data recovery tool.

Step 1: Select “Lost Partition Recovery” when open Recoverit.


Step 2: Select the corrupted partition where you lost files. If there is no corrupted partition, you can click "Try Again".


Step 3: The software will scan the corrupted or damaged partition automatically and list all the recoverable lost data. You could preview the data and click “Recover” to store the data.


How to fix corrupted partition via Command Prompt or freeware?

Here are two methods to fix corrupted partitions, with Windows build-in tool and freeware. Command Prompt requires users have some knowledge of computer operation. Recovering a corrupted partition is not difficult if you have a suitable solution to help you.

Method 1. Fix corrupted partitions via using CMD

If your hard disk drive has bad sectors or internal errors, your hard disk can easily get damaged. If you know how to run CHKDSK commands on your PC, you can easily solve the hard disk corruption problem. Follow the detailed steps below.

Step 1: Press “Windows +R” and type CMD to run Command Prompt as administrator.

Step 2: Type CHKDSK and hit Enter to check errors in the corrupted partition.

Step 3: Type chkdsk #: /f /r/x to let CHKDSK fix the partition. (Replace # with the drive letter of your corrupted partition)


Method 2: Use freeware-AOMEI Partition Assistant to fix corrupted partition easily

If you think the CMD method is a little complicated to fix corrupted or damaged partitions, a reliable and professional partition manager is the best choice. AOMEI Partition Assistant is highly recommended for Windows 11/10/8/7/Vista/XP.

You could use AOMEI Partition Assistant to fix the partition in three ways. This tool is freeware to help you manage your disk easily. Free download it and follow the steps to repair your partition.

Download Freeware Win 11/10/8.1/8/7/XP
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✍ Check partition for bad sectors

Step 1: Install and open AOMEI Partition Assistant. Right-click the partition you want to check and select “Advanced”> “Check Partition”.


Step 2: There are three options you could choose from. Tick one according to your needs and click “OK”. Then wait for the process to complete.


✍ Rebuild MBR of corrupted hard drive

Step 1: Run AOMEI Partition Assistant, right-click the hard disk containing the corrupted partition and select “Rebuild MBR”.


Step 2: Select the type of MBR for your current operating system and click “OK”.


Step 3: Then click “Apply” to perform “Rebuild MBR” process.


✍ Reformat the corrupted partition

Step 1: Right-click the corrupted partition and select “Format Partition”.


Step 2: Select a file system-ex: FAT32 and click “OK”. And then click “Apply” to proceed.


Except for these methods to fix corrupted partition via AOMEI Partition Assistant, it offers more utilities to manage your hard disk effortlessly. It is worth trying for those who don’t have knowledge of computer. It offers basic disk management function like resizing partition, moving partition, merging partitions, splitting partition, formatting partition, create partition, etc.

For its professional edition, it includes more useful converter and wizard, convert MBR to GPT, convert dynamic to basic disk, convert NTFS to FAT32, partition recovery, disk clone, APP mover, Windows to Go creator, etc.


To sum up, following all the steps, you can successfully recover the data from the corrupted hard drive and fix the corrupted partition without losing data. Compared with using CMD to fix the corrupted partition problem, AOMEI Partition Assistant is more recommended in an easy way.

It is recommended to back up important files to a safe place to avoid loss of files stored on the partition. You can clone the file and save it to another storage device or with a reliable tool-AOMEI Backupper. Besides, always keeping the recovery partition makes partition recovery very simple so that all damaged or corrupted partitions can be recovered.