By Stephanie / Last update March 14, 2022

"My HDD is split into two partitions. I wanted to increase the size of the first partition by shrinking the second one and then extending the first one. I downloaded a tool to perform it. Suddenly, the computer was frozen. I restarted the computer. Then I couldn't access the second partition, it said that it's either damaged or corrupted or something like that. Is there any way to repair the damaged partition and recover the files?"

Partitioning your hard disk is always a beneficial thing largely because data is independent on one partition. You can save your data in different partitions efficiently. These partitions created on your hard drive are never everlasting, however, they may be removed, destroyed, lost, or damaged because of various factors.

If the partition gets damaged, you can’t access it via Windows File Explorer or Disk Management. You may encounter the following error messages:

“Drive disk not formatted; Will you now format it?”

“Corrected and unreadable file or directory”

“You need to format the disk in drive G: before you can use it. Do you want to format it?

Common causes of partition damage

Partition damage can be caused due to various internal and external factors leading to data loss. You should know certain reasons for partition data loss to prevent partition repair. Let us look into the main four reasons for partition damage.

▪ Partition table damage or corruption. If the partition table is corrupted, you will be unable to access the partition to read or write data. You can use the Command Prompt to fix the partition table.
▪ Computer virus attack. Viruses can be designed to specifically attack your partitions and their data. Fortunately, numerous antivirus apps are available online, many of them free of charge.
▪ Human factor. For beginning computer users, as they misuse the disk or improper operation like expanding or shrinking the size of a partition. This will lead to corruption of the partitions and finally permanent harm.
▪ Bad tracks or sectors. Logical errors or physical damage to the disk could result in bad sectors. In case of a logical failure in the sector or tack, only the bad section/track is not available and you can attempt to fix the partition.


How to repair a damaged partition?

All files are not accessible in the damaged partition. In this case, if you want to repair the damaged partition and access those files from it, you need to find a partition recovery program to retrieve data from the damaged partition. Or you can choose to repair the damaged partition by using CHKDSK or perform a format directly.  

Recovering data using data recovery software

It is difficult to recover data by yourself. There are lots of data recovery software available online, you can choose a reliable and professional data recovery tool to perform it.

We will take Recoverit as an example today to recover data from the damaged partition. It has proven records of successful recoveries, an easy-to-use user interface, and its amazing range of other capabilities that secure your data from further loss.

Step 1: Select the option "Lost Partition Recovery" mode to start partition recovery first.


Step 2: Select the damaged partition. If you cannot find the partition, you can click "try again".


Step 3: The tool will start scanning the files in the damaged partition. The scanning time depends on the size of your data files. After the scan finishes, you can preview the recovered files from the damaged partition and selectively recover the files you want.


Repair the damaged partition using CHKDSK

If you have the correct solution to help you out, it is not difficult to fix a damaged partition. CHKDSK is a handy tool for Windows computers. It is a built-in Windows utility that checks the file system and file system metadata. In addition, it can also be used to repair any partition errors found.

Before repairing via CHKDSK, make sure you have recovered all necessary files from the damaged partition.

Step 1: Press the Windows key on your keyboard and search for Command Prompt. Right-click and select Run as administrator.


Step 2: Type chkdsk #: /r (replace # with your drive letter which you need to repair) and press Enter.


Step 3: After the command prompt has finished, you will see what actions were performed.


Perform a format in Disk Management

If the partition is damaged and cannot be repaired by using CHKDSK, formatting the damaged partition is the best way to repair it. As a result, all files in the damaged partition will be erased and the partition will be back to its original state.

Of course, only once your data are retrieved should this be performed. Some data will be lost forever if you format them before trying to retrieve them.  

Step 1: Press Win+R and input “diskmgmt.msc” to open Disk Management.

Step 2: Right-click on the damaged partition you want to repair and select “Format”.


Step 3: Add a name for the new partition and tick “Perform a quick format”. Hit OK.


Step 4: Then you can choose OK if you want to back up any data before formatting.


How to prevent your partition from damages

There are a lot of things that you can do to prevent repairing the partition in the future to save time and effort to recover your data. A list of things you are able to do here:

Using antivirus-As the most typical reason for partition damage is the computer virus, you should always scan your external devices. Make sure that your machine has a proven updated antivirus tool.

Operate computer properly-Do not perform invalid operations on your computer because it may cause faulty and corrupted partitions.

Avoid pirated software-Do not install pirated software if possible. While free, you might cause serious damage to the computer and even disable it sometimes. Prefer licensed application versions and be safe.


A damaged partition usually unexpected happens. We have discussed three ways to recover data from the damaged partition and how to repair a damaged partition in this post. The most important for damaged partition recovery is to implement solutions to avoid the damage happening again. Take care of your information through the regular backup, so in the event of data loss, you can get back to.