Installation and Login
Partition/Data Recover
Installation and Login
Partition/Data Recover

Check Partition and Fix Errors with AOMEI Partition Assistant

For a formatted partition, partition checking can discover some errors of the file system to ensure the integrity of your data and on a disk or any partition, this function will scan each disk sector status by reading data from the sector.

AOMEI Post By AOMEI Updated June 27, 2024

Overview of Check Errors on a Partition

There is a grad school student in the middle of an important project with a deadline, and as is usually the case, his computer crashed at the worst possible time. He tried desperately to back up his data and save his hard disk, but he kept getting "cyclic redundancy" message without knowing what it is. Later, he knoew it by searching on the internet. It indicated a bad spot on a hard drive or within a file if it is seen during a file backup process.
In such a case, it is a good thing to check the disk for error and fix it. Otherwise, something worser would happen. As is also for the student, before he got to know the exact meaning of the message, every time he started his computer, even in safe mode, more data was lost to the point where he was almost unable to start it at all the last time. Had he checked his disks before backup, the disaster would not happen. For his situation, there might be some viruses on his disk and the viruses were also backed up during his operation.
In a word, it is important to check error before other partition management operations. In order to perform operation, such as resize partition, split partition or merge partition safely and successfully, you are required to check that partition beforehand. The major function of Check Partition is to find errors in file system to ensure the integrity of your data. With the help of partition checking function, you could find the errors in time and then find a remedy. (Tips: AOMEI Partition Assistant provides not only feature to find errors but also service to fix it.)

How to Check Partition Step by Step with Partition Assistant

Before you do

  • Download and install AOMEI Partition Assistant on a Windows computer.
  • Attach a drive with a partition you would like to check.
  • Make sure there is no extra application in use before you check partition because that application might be accidentally closed if AOMEI Partition Assistant recognizes it.
  • To get a better result, please don't use your computer for any other tasks while it is checking errors.

How to Check Partition

1. Right-click the partition which you are going to check and select "Advanced" -> "Check Partition".

Advanced Check Partition

2. Select the way of checking errors to perform.

There are 3 options:

  • Check partition and fix errors in this partition by using chkdsk.exe
  • Check partition for errors by using chkdsk.exe
  • Check whether there is bad sector on the partition
The first option not only finds out the wrong parts in the partition but also deals with them; the second option gets the errors only; the third one just tells you whether there is bad sector on the partition.
From the first one to the very last, the requirements level lows down, so the time they cost decreases. In this case we choose second option by default. After that, click "OK" to continue.

Check Partition for Errors

3. The operation will be completed successfully in a few seconds or minutes. While it is operating, you can view how far it goes through the process on the pop-out window. Click "OK" to finish this task.

Check Partition for Errors Completed

How to Check and Fix Partition

If you want to not only check a partition but also fix it if there is any error on the partition, then you need to study the following steps carefully and the things you have to do are a little different from above.

The steps of fixing partition are roughly the same as "Check Partition". However, the step 2 is slightly different. When you go to Step 2, please choose "Check partition and fix errors in this partition by using chkdsk.exe", the remainning steps are the same as those mentioned above.

Check Partition and Fix Errors


Following the above steps, you can check and find errors on a partition. It helps you to inspect the partition condition.

This feature is usually used to find and fix errors on a partition. If you want to check and find bad sectors on a disk, you can try the feature Surface Test.



  • You can use chkdsk.exe to check the partition that has a drive letter only. For the partition without drive letters, namely, the unallocated space, it should be labeled before you can check it.
  • Depending on the size of your drive, this process might take several minutes.

Q: How long will it tale to finish the check process?

A: The time to finish the check process depends on the partition size and errors on the drive. It might be stuck if there are too many errors. To check in a faster way, you can click "Quick Check".

Q: After I use the "Check Partition" function to repair the partition, the program still prompts that there are errors in the partition, how can I solve it?

A: It is recommended to use the chkdsk command that comes with Windows to repair the partition.