Aomei Partition Assistant Bootable Media

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Dot Liljenquist

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Aug 3, 2024, 4:52:13 PM8/3/24

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When your computer fails to boot into Windows 11/10/8/7, you can use AOMEI Partition Assistant to make a WinPE bootabe CD to fix Windows failure. And, it is also helpful to boot the PC into WinPE to do some operations, for example, resize partition, partition recovery, and so on in case that some operations cannot be executed in Windows.

Creating a bootable media (ISO file, USB flash drive or CD/DVD) based on Windows PE (Windows Pre-installation Environment) can load an operating system and run Partition Assistant under the system. It can avoid damage to the native operating system due to some reasons, such as your wrong operation. It is very useful to troubleshoot computer problems and recover data when the native system fails to boot.

Windows PE Bootable media enables you to start a computer for the purposes of deployment and recovery. It boots directly into memory, which lets you remove the Windows PE media after the computer boots. Once you have booted into Windows PE, you can reformat or modify the hard drive and then copy the Windows PE source files to the hard drive.

This tool is very useful for you to troubleshoot computer problems, and recover partitions in case of system boot failure. If you would like to use this feature, please upgrade to a paid version of AOMEI Partition Assistant Professional, Server, or above versions.

1. Install and launch AOMEI Partition Assistant. Click the "Tools" main tab and select "Make Bootable Media". Confirm the operation and click "Next" to continue.

There are three ways available to create bootable media based on Windows PE.
Burn to CD/DVD: To create a bootable CD/DVD.
USB Boot Device: To create a bootable USB Device.
Export ISO File: Use this method to make a bootable ISO file. After the ISO is exported, you need to burn it with a third-party burning program. Or, you can use the ISO to boot some virtual machines or burn it to other devices.

Tips: "Add Drivers" allows you to manually add additional and necessary drivers into the bootable media so that more devices will be available after you boot into WinPE.

4. After you select the way and proceed, there will be a pop-up information window. The USB flash drive needs to be formatted and all the data on it will lose. If there is important data on it, please first make a backup. If you confirm, please click "Yes" to continue.

So far, you have created the bootable media successfully. If your computer does not start or certain operations cannot be performed under Windows, you can use the bootable media to boot the PC into WinPE to do the operations you need.

Case 1. If your PC cannot boot due to the damaged Master Boot Record (MBR) issue, you can use it to boot into WinPE to rebuild MBR to fix the corrupted MBR, which helps fix the system boot issue.

1. AOMEI Partition Assistant will detect and integrate all necessary drivers of the current system automatically. When the progress begins a few seconds, there will be a pop-up window with the list of these drivers.

2. To boot from the Windows PE USB flash drive or CD/DVD, you need to enter BIOS/UEFI and change boot order under Boot Menu. And, you may also need to disable Secure Boot under BIOS/UEFI. For different brands of computers, the key to enter into BIOS might be different. You can check more details here.

A: The main difference is that the bootable media is mainly used to boot a PC in case of PC boot failure, while the portable version is mainly convenient for engineers or technicians to do IT maintenance or support on client computers without installation.

There is an error "Failed to create the bootable ISO file. The WIM file you specified may be invalid or there might be an error during the process of the creation. One possible reason is that your system doesn't have the Recovery Environment or the Recovery Environment has been damaged, please install ADK and WinPE Addon and retry creation. Also, we suggest you reboot the computer and try once again, or read the online FAQ during the creation of the bootable media.

Hello, I am attempting to use your product to migrate the OS to an SSD and I am having a problem. I set up the function just as your tutorial shows and when I press Apply, it states that I need to boot into a PreOS mode to finish the operations. I choose proceed and the computer reboots, but never enters PreOS mode or performs the operations that it says it will.

I booted computer via USB stick in WinPE. I attempted to copy the hard drive to my new SSD. When I clicked Apply, it stated that it needed to reboot into PreOS mode, so I clicked proceed. Then it gave me this error:

When I closed the program, it stated that there were pending actions and would I like to apply those actions now. I did this and it proceeded to copy the hard drive as I first attempted to do. Upon booting up the new SSD, however, there was no bootable media found and the hard drive would not boot.

When I put the SSD back into a USB adapter so I could look at it, all the partitions looked like they were identical to the original HDD, but the Flags and the Status for each of the partitions were not the same. I assume that the program is not setting the flags correctly for the partitions so that the computer recognises there is a bootable disk in the system.

This is a photo of my drive partition information so that you can see what I have existing on my system drive. Please let me know how this can be solved. I have paid for the program expecting it to work with windows 8 as it stated on the site, but if this will not work, I would like a refund.

We are so sorry for the problem this time you encountered. Could you please retry creating AOMEI Partition Assistant WinPE bootable media on another computere and then use the bootable media to manage this Lenovo laptop Y410P with Windows 8.1?

I am going to send you a private message with a license of AOMEI Partition Assistant Pro Edition, then you can use this licence on another computer. If you do not have a spare PC, we can create the iso file for you, please let us know.

Hello and thank you for your prompt response. I have two additional computers at the house that I will try this method once I return from work in several hours. One is a Windows XP machine and the other is a Windows 7 machine. I will do my best to chronicle what steps I take and what does or does not work this time around.

Since this operation failed, I then tried the Copy Disk function. I went through the prompts, and it stated that a reboot was required into PreOS mode. I choose to proceed, but the computer never restarted. I then manually powered down the computer to see if it would restart in PreOS mode and continue the functions, but it did not.

Since that option failed, I am now trying another Disk Copy by attempting to close the program out when finished. It states that I have pending actions and would I like to perform them now. I choose yes, and the system is now copying the disk as it should. This seems to be the same as it was previously, but the operation has not finished yet. I will post back when I am able with further results.

About this error "Some files (Windows\Boot\EFI\bootmgfw.efi, Windows\Boot\EFI\bootmgr.efi
or Windows\Boot\PCAT\bootmgr) were not found in your system, so the
operation will not continue." Is it possible to take a screenshot and post it here.

4. This time, I have partitions existing on my hard drive from previous attempts of copying, so I delete all partitions on the hard drive. I Apply these changes. NOTE: this does not require the restart.

13. If I close this window and then exit the program using the top right close button on the window, the program prompts me that I have existing procedures to perform and would I like to do those now. I choose yes and it continues to copy the hard disk as I originally attempted to do.

15. I switch out the hard disks back to the original setup and look at the partition information - here is what I see. The partition information for the copied destination disk does not match the original disk.

Please advise on any way I might change the flags or set my status to boot on any of these partitons - am I correct in thinking that this might solve the problem of my system not finding a valid noot disk? Do I need to copy files from one to the other? Is there another program that I need to perform these operations? Is it something I can perform from a command prompt?

I have now attempted the same procedures using a WinPE USB created from a different WinXP computer with similar results. Unfortunately, it seems that the partitions on the copied (destination) disk are not set to active or flaged as a bootable partition by the software. I am unsure how to procede from here - is there a way that I can change the flags or set the partitions to bootable?

Thank you so much for your patience and support. As for your problem, we have to say sorry that Partition Assistant cannot help to resolve your issue this time. The error message"Some files (Windows\Boot\EFI\bootmgfw.efi, Windows\Boot\EFI\bootmgr.efi or Windows\Boot\PCAT\bootmgr)" refer to that your OS doesn't include this file. It may be because of your particular cicumstance. As we noted that there are serveral partitions are marked as boot in the screenshot, which is not normal.

Hello, thank you for attempting to help me. I finally was able to transfer my hard drive over but it was a little bit of a convoluted process. I copied my hard drive using another product (competetor that I won't mention). This allowed the flags for each partition to be set more accurately - something that the partition manager product wouldn't do. Then I created a Win backup disk. I booted using the Win backup disk and restored the Win installation from one of my other partitions on my copied hard drive. It took a little time and work to figure out, but finally got it done. I will write you regarding my refund.