How to fix Data Error Cyclic Redundancy Check problem on external hard drive

Roxanne updated on Dec 05, 2018 to Partition Manager | How-to Articles

Sometimes, when you plug in your external hard drive, SD card or some other USB devices to PC and try to open it to view or copy your data on the device, you may get the message 'Location is not accessible. Data Error Cyclic Redundancy Check'. And also you might also be asked to format the disk because the external hard drive has become RAW. Compared with an external hard drive with other brands, this issue seems to be much more severe on Seagate external hard drive and Western Digital external hard drive.

How to fix 'Data Error Cyclic Redundancy Check' error in Windows 10/8/7

While being prevented from accessing your external hard drive and data, you just want to figure out how to fix the 'Data Error Cyclic Redundancy Check' problem to retrieve your files. As we know, at most times, the issue is caused by a number of small errors or file corruptions on a hard disk. So, to fix it, you just need to repair hard drive using EaseUS partition software. Coming with disk check feature, the program can help you check hard drive for errors and repair the disk for reuse. 

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 Windows 10 is supported

Check Hard Drive for Errors to Fix 'Data Error Cyclic Redundancy Check' Problem


Step 1: Open EaseUS Partition Master on your computer. Then locate the disk, right-click the partition you want to check, and choose "Check File System".

Check Partition - Step 1

Step 2: In the Check File System window, keep the "Try to fix errors if found" option selected and click "Start".

Check Partition - Step 2

Step 3: The software will begin checking your partition file system on your disk. When it has completed, click "Finish".

Check Partition - Step 3
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 Windows 10 is supported

Recover Files from RAW External Hard Drive Shows 'Data Error Cyclic Redundancy Check' Error

And if the 'Data Error Cyclic Redundancy Check' problem occurs because the external hard drive has become RAW, you can run EaseUS disk data recovery which works well in RAW drive recovery to retrieve your data first and then format the disk to repair it for reuse. 

Step 1: Connect the external hard drive, SD card or other USB devices to PC, download and launch EaseUS disk data recovery, select the device and click "Scan" button.

Step 2: The software will soon start the scan to find the lost & existing data on the disk. 

Step 3: After the scan, preview and choose the files you want to recover. Finally, click "Recover" button to export and save them on another external memory device.

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

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How to Partititon a Hard Drive on Windows 10/8/7