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How to Partition, Format or Wipe Hard Drive Without OS

Updated on May 05, 2019 by Jean to Partition Manager

Download the best bootable partition manager for USB, CD or DVD to partition, format and wipe a hard drive without OS. It is the easiest way to modify an HDD or SSD on a computer without a Windows operating system installed, or when the Windows operating system cannot boot.

Usually, in all types of Windows operating systems, you can format a hard drive from the command prompt, a hard drive formatting tool or within the Windows Explorer and Windows Disk Management. But, how are you going to make it happen if your computer has no operating system at all? You see, when there is no operating system, you cannot operate those format utilities.

Nevertheless, such a problem has been resolved already. You can depend on Windows PE (Preinstallation Environment) to boot the computer. The overall process is as follows:

  • Create a bootable media, which can be an ISO file, USB flash drive or CD/DVD disc
  • Boot the non-operating-system computer from the bootable drive
  • Format the hard drive for a normal usage

EaseUS Bootable Partition Manager

Are you looking for a bootable partition manager that allows for creating a bootable USB flash drive or bootable CD/DVD disc? It's good to know the plenty of advantages by preparing a bootable media at hand, especially when your operating system fails to work and doesn't boot normally, what's more, there is even no operating system installed on a newly bought computer. So, what's the best bootable partition manager which helps partition, format or wipe hard drive without OS easily?

EaseUS Partition Master is designed with a highlighted feature called WinPE Bootable disk, with which customers can run the partition magic software from the bootable device and make full use of its disk and partition management functions, such as format a partition, wipe a partition, create a new partition and many other useful features you're supposed to check by yourselves.

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 Windows 10 is supported

Create the EaseUS bootable drive

Go and find another working computer. You need to download and install the EaseUS Partition Master to accomplish the essential steps to make a bootable drive.


Step 1: Prepare a disc or drive

To create a bootable disk of EaseUS Partition Master, you should prepare a storage media, like a USB drive, flash drive or a CD/DVD disc. Correctly connect the drive to your computer.

Launch EaseUS Partition Master, go to the "WinPE Creator" feature on the top. Click on it.

create easeus partition master bootable disk

Step 2: Create EaseUS Partition Master bootable drive

You can choose the USB or CD/DVD when the drive is available. However, if you do not have a storage device at hand, you can also save the ISO file to a local drive, and later burn it to a storage media. Once made the option, click "Proceed".

create easeus partition master bootable disk

You have created an EaseUS Partition Master WinPE bootable disk now. You can manage your hard disks and partitions through the bootable drive whenever the computer fails to boot normally.

If you have RAID drives, load the RAID driver first by clicking Add Driver from the menu bar, which can help you add the driver of your device under WinPE environment, as some specific device cannot be recognized under WinPE environment without drivers installed, such as RAID or some specific hard disk.

Boot the non-operating-system computer and format a hard drive

Insert the bootable drive in the computer without OS, set the boot order in BIOS to boot the computer from the EaseUS bootable USB drive. Follow the steps to perform your own task.

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 Windows 10 is supported

Smaller cluster size makes less wasting of disk space. The smaller cluster size is, the bigger file allocation table (FAT) will be. The bigger the FAT is, the slower the operating system works with the disk.

Click for additional help:

1. How to partition hard drive with EaseUS Partition Master?

2. How to format a partition with EaseUS Partition Master?

3. How to wipe partition with EaseUS Partition Master?

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 Windows 10 is supported