How to Delete All Partitions on Windows 10, 8, 7 at One Time?

“I want to delete all partitions including the system on my Windows 10”

We have received a letter from a user who wanted to delete all partitions on Windows 10. She said she wants to clean and delete all partitions on the Windows 10 computer and reinstall Windows OS for better use.

The truth is, many users want to do this, too! Some users want to delete all partitions for reinstallation; some users want to delete all partitions for selling the hard drive. Well, is it possible to delete all partitions on Windows 10/8/7? Definitely, yes!

Wow, cannot delete the system partition!

Windows users are familiar with Windows Disk Management, and they usually use this tool to delete partitions on hard drives.

Right-click This PC/Computer/My Computer. Select Manage-> Disk Management.

Here you can see all partitions on your computer. If you need to delete the partition, right-click it, and select Delete Volume. And you need to delete all partitions one by one in the same way.

Generally, most of the partitions can be deleted except the system partition. But when you try to delete the system volume, the Delete Volume should be greyed out.

Here, you may want to ask how to delete the system partition or if is there any way to delete all partitions on Windows 10/8/7 at one time. If you have such questions, read and continue to find the answers.

Delete all partitions on Windows 10/8/7 with third-party software

Since you cannot delete system partition with Windows Disk Management, you need to take advantage of some third-party software. And here we highly recommend you AOMEI Partition Assistant Professional, the great partition manager that allows you to delete all partitions including system partition at one time on Windows 10/8/7. Download to Try.

Delete all partitions on disk without the system installing

If you want to delete all partitions on a hard disk without system installation, like the second disk, or third disk, it is easy to operate.

1. Install and launch AOMEI Partition Assistant, select the disk (not the system disk) you want to delete, right-click it and select Delete All Partitions.

2. Here you can choose to Delete all partitions or Delete all partitions and wipe all data on the hard drive. Choose a way you need, and click OK. (if you choose to Delete all partitions and wipe all data on the hard drive, the Wiping Method will be effective right now.)

3. Finally, click Apply -> Proceed to execute the progress.

Delete all partitions on the system disk

If you need to delete all partitions on the disk that installed Windows 10/8/7, you can create a bootable USB drive via AOMEI Partition Assistant and then boot the PC from USB. Once you log in, you can right-click the system hard drive and choose "Delete all Partitions" to complete the operation. 

Wipe hard drive/Secure Erase SSD

Another way you can delete all partitions of Windows 10/8/7 at one time is to wipe the hard drive at one time. And you can also use AOMEI Partition Assistant to wipe the hard drive. The Wipe Hard Drive function of AOMEI Partition Assistant will delete all partitions and wipe all sectors on the disk. After the wipe, the data won’t be recovered.

But if your hard drive is an SSD, then you cannot use the same way of wiping HDD to wipe the SSD, because that would hurt your SSD. Fortunately, AOMEI Partition Assistant allows you to secure erase SSD. The Secure Erase SSD Wizard of AOMEI Partition Assistant would help you to delete all partitions and erase all data on the SSD without hurting its lifespan.

Conclusion

Delete all partitions on Windows 10/8/7 at one time can save a lot of time. But sincerely, the AOMEI Partition Assistant would help a lot. No matter whether you want to delete all partitions on Windows 10/8/7, wipe HDD, or erase the SSD, it will give you the best way to finish the job. Besides, it is a great powerful hard drive partition manager that you can use to repartition the hard drive after you delete all partitions on the disk.

* If you are a Windows Server user, you can try AOMEI Partition Assistant Server Edition. But if you find a hard disk partition manager for an enterprise, AOMEI Partition Assistant Unlimited is highly recommended.