Partition Repair Tool: Repair Partition on Windows 10/11

Partition repair involves fixing issues with the way data is organized on a storage device, allowing access to files that may have been inaccessible due to corruption or other problems. This page shows you how to repair a partition without data loss using EaseUS partition recovery tool or the CHKDSK command.

As we know, one physical disk can be divided into several partitions (the drive letters such as C: or D:), which are also called "volumes". Once a hard disk is divided into several partitions, directories and files of different categories may be stored in different partitions.

Actually, many users have experienced that the system cannot find partitions. The problem can occur when the partition is deleted, lost, or gets corrupted due to a virus attack, improper operation, damaged partition table, bad sectors, or abrupt power outage. In these situations, if you want to access files on a corrupted partition, you have to learn partition repair and how to recover lost partition data.

Partition repair involves fixing issues with the way data is organized on a storage device, allowing access to files that may have been inaccessible due to corruption or other problems. This can be achieved through various methods, including using built-in tools like CHKDSK or TestDisk, or specialized partition recovery software.

Partition Repair on Windows 11/10 in 5 Ways

How to do partition repair without data loss? We provide you with easy ways to repair a corrupted partition without losing data.

Fix 1. Use Built-in Windows Partition Repair Tool

To fix a corrupted partition with a damaged file system, Windows' built-in disk check tool can be helpful. CHKDSK is a command-line tool that checks the integrity of a file system and attempts to fix errors, including those related to the partition table.

Run CHKDSK to repair the partition with a corrupted file system by following these steps:

Step 1. Go to Windows Search and type cmd.

Step 2. Right-click "Command Prompt" and choose "Run as administrator".

Step 3. Enter the following command and press Enter: chkdsk E: /f /r /x.

"E" means the drive letter of the partition you want to repair.

Fix 2. Use EaseUS Partition Recovery Tool

When you could not see the partition you need in Windows Disk Management, it might be lost, and the data on it could be lost with the partition table. Actually, the partition was not really lost, even if the partition table was destroyed by a virus or deleted accidentally. Professional partition Recovery software - EaseUS Data Recovery Wizard can help you recover corrupted partitions and rescue your data from lost partitions on HDD, SSD, and external hard drives.

EaseUS partition recovery software is exclusively designed to recover data from FAT, NTFS, and EXT file system-based partitions. It restores the data as well as the partition instruction together. What's more, RAW partition recovery is also supported.

Step 1. Select and scan the lost partition

Launch EaseUS Data Recovery Wizard, select "Lost Partition" and click "Search for Lost Data" to search for all the lost data from your lost or deleted partition. If there are many lost partitions, you can identify them through its partition size.

Note: Since the Windows system doesn't support the Linux file system, the Ext2 or Ext3 partition will be recognized as lost partition with no drive letter in the software. If you want to recover data from Ext2/Ext3 partition, you can follow these steps.

Step 2. Filter the scanned results

Because there will be a lot of scanned files, you can choose a file category for quick filtering, such as Pictures, Videos, Documents, Audio, and Others. Or if you remember the file name, you can just look it up in the search box in the upper right corner.

Step 3. Preview and recover data from the lost partition

Before recovery, you can preview the file to make sure it is the data you need. Choose all the files you need and click "Recover" to restore them. Choose a storage location (including cloud storage, such as OneDrive, Google Drive, etc.), and click "Save" to save your recovered files.

After data recovery, you can repair the partition without worrying about data loss.

Share this post with your friends and help them learn how to perform partition repair when a partition gets corrupted due to file system issues.

Fix 3. Format the Corrupted Partition Without Data Loss

In some cases, formatting a partition can help resolve issues, but it will erase all data on the partition. Install EaseUS Partition Recovery software to restore your important files.

We also provide a video tutorial about hard disk and partition repair. Take a look!

1. 00:19 - Check and Repair Hard Disk
2. 01:18 - Format the Hard Disk
3. 01:57 - Recover Data from Hard Disk
4. 02:39 - Run SFC Scan

Then, format the corrupted partition. You can use Disk Management to select the partition and format it. Follow the steps below:

Step 1. Right-click the Start button and select "Disk Management".

Step 2. In the Disk Management window, find the unallocated or corrupted partition.

Step 3. Right-click the corrupted partition and select "Format".

Step 4. In the dialog box, choose a file system (NTFS is recommended for Windows), assign a volume label, and select "Perform a quick format".

Step 5. Click "OK" to start the process. A warning message will appear, reminding you that all data will be lost. Click "OK" to continue.

Fix 4. Fix Corrupted Partition with Damaged MBR 

If the system partition is corrupted due to a broken MBR, you can't boot your computer. To solve the problem and perform partition repair, you need to start your computer from the installation DVD/CD (or the recovery USB), then follow the steps below to fix the MBR. 

Step 1. On the Welcome screen, click "Repair your computer" and choose "Troubleshoot".

Step 2. Choose "Advanced Options > Command Prompt".

Step 3. When the Command Prompt opens, type the following commands and press Enter after each:

• Bootrec.exe/fixmbr
• Bootrec.exe/fixboot
• Bootrec.exe/rebuildbcd

Step 4. Wait for the process to complete. After that, restart your computer and check if the partition works properly.

Fix 5. Repair Corrupted or RAW Partition with Disk Repair Services

If you can't fix a damaged partition yourself, you still have a greater chance of restoring the partition with manual disk repair and data recovery services.

Conclusion

A corrupted and inaccessible partition is a tough problem for us. To perform partition repair, you can use Windows tools like CHKDSK from the Command Prompt to fix file system errors and bad sectors, or bootrec commands to repair a corrupted partition table. For lost or deleted partitions, third-party software like EaseUS Partition Recovery can scan the drive and restore them.

For damaged partitions, consider professional help or reformatting the drive, but be aware that reformatting will erase all data. Then, repair the partition by checking the file system, repairing the corrupted MBR, or using disk repair services.

Expanded Knowledge - What are the purposes of partitioning

We can conclude the purposes of partitioning as follows:

• Keep operating system files, frequently used programs, and user data near each other.
• Have an area for the Operating System virtual memory swapping/paging.
• Have cache and log files separate from other files.
• Use of multi-booting setups, which allow users to have more than one operating system. For instance, one could install Mac OS X, Microsoft Windows, or others on different partitions of the same hard disk.
• Protect or isolate files to make it easier to recover data from corrupted partitions. Other file systems won't be affected, and the drive's data may still be salvageable if one of the partitions is corrupted.
• Raising overall computer performance on systems with smaller partitions is more efficient.
• Connect the device - external hard drive, USB, or SD card on which you lost a partition to your PC in advance.