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Guide | How to Format Hard Drive from USB with Bootable Format Tool

Updated on Dec 04, 2018 by Brithny to Partition Master

This page shows you how to format your hard drive from USB using a bootable format tool created by a third-party partition manager or using the command prompt. Try one of the two methods when your Windows operating system is corrupted and can not boot.

Almost everyone knows that formatting hard drive is not a difficult job and can be easily done with the built-in Disk Management tool in Windows. But it could be a complex one when your operating system cannot boot properly or your disk fails to work normally. That's when you need to format your hard drive from USB, which could be a bootable USB drive created by a third-party HDD format tool or a Windows installation disk. Both methods are presented in this article. Read on and carry out the method best suited to your needs.

Format HDD from USB with bootable format tool
Format hard drive from USB via Command prompt

Method 1: Format Hard Drive from USB with Bootable format Tool

The simplest way to format your HDD from USB is to use the professional partition management software - EaseUS Partition Master. With the assistance of this tool, you can create a bootable format tool which enables you to run the software on the problematic computer and then format the hard drive from USB without the operating system. To get things done, you need to create a bootable USB drive with a computer that is fully functional (Part 1), then apply it to format hard drive on the computer without OS (Part 2).

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 Windows 10 is supported

Part 1: Create a Bootable USB Drive

Please refer to this page: create a bootable drive with EaseUS Partition Master.

After creating a bootable USB drive with the format tool, you can format your hard drive on the problematic computer from USB. Connect the USB to your computer and then open EaseUS Partition Master from the USB. Then follow the steps below.

Part 2: Format Hard Drive from USB

If you want to format all the partitions on your hard drive, you can either format the hard drive partitions one by one or choose to delete all the partitions on the HDD (right-click the hard drive and select Delete all partitions), then create new ones.

Step 1: Run EaseUS Partition Master, right-click the hard drive partition you intend to format and choose "Format".

Format Hard Drive Partition - Step 1

Step 2: In the new window, set the Partition label, File system (NTFS/FAT32/EXT2/EXT3), and Cluster size for the partition to be formatted, then click "OK".

Format Hard Drive Partition - Step 2

Step 3: Then you will see a warning window, click "OK" in it to continue.

Format Hard Drive Partition - Step 3

Step 4: Click the "Execute Operation" button in the top-left corner to review the changes, then click "Apply" to start formatting the partition on your hard drive.

Format Hard Drive Partition - Step 4

If you follow the guide above, you will use the bootable USB to format your hard drive successfully. Don't miss this partition tool that can perfectly fulfill your needs.

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 Windows 10 is supported

Method 2: Format HDD from USB using Command Prompt

Other than using the third-party tool, you can also format your hard drive from USB with the help of Windows Installation disk, which, as you will know, is relatively more complicated than using a bootable format tool as shown in Method 1.

Step 1Create a Windows installation disk and boot your PC from it.

Step 2: Navigate Repair Your Computer --> Command Prompt. 

Step 3: In the Command Prompt window,  type diskpart and press "enter".

Step 4: Type list disk and press "Enter" to list all the disk drives.

Step 5: Type select disk + disk number, here you can find the number of the target disk by referring to the listed disk information.

Step 6: Type clean to wipe all files and folders on the selected disk.

Step 7: Type create partition primary and press "Enter".

Step 8: After diskpart successfully created the specified partition, type format fs=ntfs (or format fs=exfat) and press Enter. You're telling diskpart to format the drive with a file system, let it be NTFS, exFAT, etc.

Step 9: At last, assign a drive letter to the newly created partition by typing assign.

The above guide shows you all the steps to partition and format a hard drive from USB using the diskpart command prompt. As you can see, It is a little bit tedious and time-consuming. If you want an easier way, a third-party bootable USB format tool will help.