How to Recover Deleted Partition Using a Bootable USB?

If you delete boot partition or system partition accidentally, you will fail to boot your PC. In such a case, you can refer to this post to get a recover deleted partition bootable USB to get rid of this issue quickly.


By Hedy / Updated on May 12, 2023

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When need a free bootable partition recovery tool?

Image that you need to delete partition in DiskPart. Its non-GUI interface may cause you to carry out operations on the wrong drive. For instance, if you plan to delete all partitions on a data disk but accidentally operate the deletion on the system drive, what will happen?

When your system partition or boot partition is deleted or missing, it means you cannot boot into your computer. In this case, you must be wondering how to recover deleted boot partition to get the OS bootable again.

Actually, the easiest way is to seek help from a recover deleted partition bootable USB. With this tool, you can boot your Windows, access all the drives, and then restore lost and deleted partitions easily. Want to know where to find a bootable partition recovery tool? Keep reading.

Which tool can recover deleted or lost partitions without OS?

A qualified bootable recovery tool should meet two requirements: it’s able to boot the OS into the Windows PE environment and it can recover missing partitions. Here, AOMEI Partition Assistant Professional is highly suggested. It allows you to make a bootable CD/DVD disc or bootable USB flash drive within 3 clicks, then you can boot from this media (with AOMEI software pre-installed) to recover the accidentally deleted system partition quickly and safely.

Key features:
♥ Recover deleted partitions with or without OS.
♥ Recover lost partitions on a repartitioned disk.
♥ Support FAT32, FAT, NTFS, Linux file systems, etc.
♥ Provides two features: Fast search and full search.

Whether you running on Windows 11/10/8/7/XP/Vista, you can get this software and follow the below guide on how to recover all deleted Windows partition without booting Windows.

Download Pro DemoWin 11/10/8.1/8/7/XP
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How to recover deleted partition using a bootable USB?

To make the recovery process clearer, we divide it into two stages:

Stage 1. Create a bootable USB on a running computer

Since the Windows OS is unable to boot after the system partition is deleted by accident, we need a working PC to help us make a bootable USB.

Step 1. Connect a USB flash drive to a working Windows computer, install and launch AOMEI Partition Assistant Professional on this PC as well. Click "Make Bootable Media" and "Next" on the next window.


Step 2. Tick "USB Boot Device" in the pop-out small window and click "Proceed" to start the pending operation. When it finishes, unplug the USB drive, and you will get a recover deleted partition bootable USB.


Stage 2. Recover deleted boot partition

Insert this bootable USB into the computer whose system partition or boot partition is lost, restart the PC, and constantly press F1, F2, F12, or other function keys to enter BIOS. In the BIOS setting, change the boot order to boot from the bootable partition recovery tool.

When you log in, you will be taken to the interface of AOMEI Partition Assistant Professional automatically. Then, you can follow the steps to get your deleted Windows partition back.

Step 1. On the main interface, click "Recover" > "Partition Recovery" on the left panel.


Step 2. Select the disk which contains deleted boot partition.


Step 3. Select "Fast Search" which takes less time for the first time and click "Next". If this method is not working, you can select "Full Search" later.


Step 4. All the lost partition found will be listed, tick the deleted boot partition and click "Proceed". Then, click "Finish" to exit the operation.



Be calm when you accidentally delete boot partition next time, you can use a recover deleted partition bootable USB created by AOMEI Partition Assistant Professional to fix the error easily and quickly.

In addition, for sake of preventing system partition from losing due to hardware/software failure, virus assault, or other unknown reasons, you are suggested to clone Windows system to SSD or HDD as a backup. Once the accident happens, you can restore your PC to the previous state as before.

Hedy · Staff Editor
Hedy is an editor of AOMEI Technology. She is very good at solving problems of partition management, and she wants to share all the problems she had already solved to users who met the same questions.