[Solved] 0x8004242d Error: We Couldn't Format the Selected Partition

Jean updated on Apr 26, 2020 to Partition Master | How-to Articles

Error 0x8004242d - Failed to Format the Selected Partition

"I just can't get past the formatting attempt when trying to format my HDD for a clean install of Windows 10. Windows says 'Failed to format the selected partition. error: 0x8004242d', how to fix it?"

If you are having the same issue of being unable to format a selected partition, try the next two fixes to format your partition now:

Workable Solutions Step-by-step Troubleshooting
Fix 1. Convert Dynamic to Basic Run EaseUS Partition Master > Right-click the dynamic disk and select "Convert to Basic"...Full steps
Fix 2. Clean Disk with Diskpart.exe Run Command Prompt > type diskpart > list disk > select disk # (# is disk number) > clean...Full steps

We Couldn't Format the Selected Partition

Besides the error message 'Failed to format the selected partition with error code 0x8004242d', there is another similar trouble that prevents people from installing a Windows operating system from scratch. It's 'we couldn't format the selected partition 0x80070057'.

What are the causes? Be clear that such format failure usually suggests your setup disk has corrupted, Windows is incompatible with a mass storage controller or a mass storage driver, a mass storage controller or a mass storage driver is outdated, a data cable in the computer is loose, hardware issues have occurred, or it's only because the hard disk on which you want to install Windows OS is a dynamic disk.

Fix for Failed to Format the Selected Partition 

If you see error code like 0x8004242d or 0x80070057, you are faced with the formatting failure.

After figuring out the reasons that stop people from formatting the disk partition for Windows 10/8/7 installation, it's time to find the best solutions that can help fix the formatting error 0x8004242d/0x80070057.

Solution 1: Convert Dynamic Disk to Basic Disk

Since Windows cannot be installed on the dynamic disk, it sends error when trying to format the partition to install. Luckily, you can download EaseUS at the first attempt to convert dynamic disk to basic disk, and then format the selected partition without any trouble.

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 Windows 10 is supported


Step 1: Install and open EaseUS Partition Master on your Windows computer by clicking the download button.

EaseUS Partition Manager software

Step 2: Select dynamic disk which you want to convert to basic. Right-click it and choose "Convert to Basic".

convert dynamic to basic

Step 3: Click "OK" on the pop-up window and you will add this conversion to the pending operations.

convert dynamic to basic

Step 4: Click the "Execute 1 Operation" button at the top-left corner and "Apply" to begin to convert dynamic to basic disk. After that, you can also use this partition manager to resize/move, clone, merge, format, and delete the partitions. 

convert basic to dynamic

After changing the dynamic disk to a basic disk, you can proceed with the formatting process with EaseUS Partition Master, or just go back to install the Windows OS.

You may also interested in: How to format a partition with EaseUS Partition Master to fix the 'failed to format the selected partition' error.

Solution 2: Clean Disk with Diskpart.exe Utility

Cleaning disk using Diskpart would solve the format error. However, all the partitions and data on the disk will be permanently removed. Back up the drive if the data is useful.

Step 1: Launch a Command Prompt as administrator.

Step 2: Type the command: diskpart into the Command Prompt window, and press "Enter".

Step 3: Type the command: list disk and press "Enter".

Step 4: Examine the output of the command to identify the number of the disk you want to clean. Once you feel certain about the disk number, type the command: select disk # (replace the # with the number of the disk you are going to clean).

Step 5: Type: clean and press "Enter“. This will erase all data on the selected disk!

Step 6: When 'diskpart succeeded in cleaning the disk' appears, you've wiped the disk partition. Close the Command Prompt to continue installing Windows OS on the disk.


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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.