How to Delete All Partitions on a Hard Drive?

March 21, 2019

Clearing disk will delete all partitions on a hard drive and wipe all data on the disk.

Why Do You Need To Delete Partitions On Disk?

In the following cases, you need to delete  partitions:
  • You do not need these partitions anymore.
  • You do not need all the data on these partitions.

One day, my friend wanted to extend his c partition but there's no unallocated space on his hard drive and he did not want to merge any other partition to c except f, but partition f was not adjacent to c. Even though he could merge f with c, he did not need the data on it, in such case, I told him he should delete f partition first to get an unallocated space so he could enlarge c partition with the unallocated space with the help of AOMEI Partition Assistant.

If there are several partitions on your disk and you don't need them anymore but you don't want to delete those partitions one by one, then "Delete All Partitions" will help you remove all partitions in one go. This function applies in all Windows OSes (Operating System), all editions (both 32 and 64 bit), such as Windows 7/8/10, Windows Server systems (including Server 2012 R2 and 2008 R2) and Windows SBS (Small Business Server). After that, your disk will become blank and you can make full use of this disk by re-partition it. Then, how to delete partitions hard disk? 

How To Delete Partitions on Hard Drive?

Before you do

  • If the disk from which you are going to delete all partitions contains some important data, please create a backup for those data and save the image file on other locations before you delete all partitions.
  • If there are other applications running on the partition on which you are going to perform, AOMEI Partition Assistant will ask you to close those applications or to execute this operation under PreOS Mode. For data security, you need to close these applications before performing the operation.

To Delete All Partitions

Step1:Right-click the  entire disk and select "Delete All Partitions".

Delete All Partitions

Step2:There are two options to delete the partition and select the one you are interested in:

  • Option One: Just delete all partitions on a hard disk. (The data that has been deleted can be recovered if you choose option one in this situation)
  • Option Two: Delete all partitions and wipe all data on the hard drive. If you choose this one, your data is hard to recover with the professional data recovery software. Therefore, think twice before you decide to do this operation. Or, you can make a backup of these data before deleting your partitions.

Deletion Methods

Step3: Click Proceed and Apply button to execute the operation and it will take several minutes to delete all partitions on the disk.


  • Please do not delete the system partition on a system disk, if you delete it from the system disk, it will make your computer unbootable.
  • If you delete a primary partition via Disk Management, the empty space you get is called unallocated disk space; if you delete a logical partition via Disk Management, the empty space is called free space but if you delete them via AOMEI Partition Assistant, AOMEI Partition Assistant will show them as unallocated space and you can now use the empty space to create additional volumes.

  • If you don't want to delete all partitions at once, you can right-click the partition you want to delete so you can delete it via "Delete Partition".