By Ivy / Last update December 24, 2021

Asus recovery partition missing problem

Asus Recovery Partition is a hidden partition containing pre-load Windows operating system to restore computer to its factory settings in Asus desktop or All-in-one PCs. You could press F9 when booting to reset your PC if system crashed. 

However, if you changed the original hard drive, delete recovery partition or the hard drive got crashed on Asus computer, you will find the Asus recovery partition F9 does not work while resetting, and unable to reset your PC from the Asus recovery partition. Below is a user case from forum:

“Recently, I deleted the recovery partition on my Asus computer by mistaken when I reinstall the Windows 8. I thought it comes with Windows, so it will come back after reinstalling my Windows operating system. Is it possible to get the Asus Recovery partition again? Now, how can I recover my factory Asus Recovery partition, Please help me out, Thanks a lot.”

Then, how to fix Asus Recovery Partition cannot be found problem? Please keep reading below to learn more.

Can I restore Asus Recovery partition quickly?

Absolutely, you can restore the recovery partition quickly after loss. According to the problem, if you have some ISO files or backup files created before deletion, you could restore your Asus Recovery Partition obviously. For Windows 8, and 8.1, you could use Asus Backtracker for free to restore the computer from the image file to factory settings. 

Nevertheless, you might encounter Asus Backtracker failed to create factory default backup and if you are running Windows XP, Vista, 7 or 10/11, you will get the error “ASUS Backtracker does not support your system”. In this case, you can only create a new recovery partition to fix Asus Recovery Partition F9 does not work in Windows 11/10/8/7. And I'll introduce you both ways later.

How to easily repair Asus Recovery Partition missing

If you are accidentally deleting the Asus recovery partition, follow me and learn how to restore it step by step with 2 solutions below.

Solution 1: Create a new Recovery Partition in Windows

For example to create a new recovery partition in Windows 8:

1. First, you could free download an ISO file for Asus recovery disk from Microsoft. Then create a Windows installation media for Windows, search the sources folder for install.esd, which is the recovery partition that is currently useless.

2. Move it to a location on your hard drive, and convert it to install.wim via some tools to make it work. Then copy the install.wim file to a new folder on your C:\Win81-Recovery.

3. Now register the file to let Windows recognize it and create a recovery partition. 

4. Input cmd in search box and choose Command Prompt and run as administrator. Then type the command line to register the install.wim file as the recovery image:

  • REAGENTC /SetOSImage /Path C:\Win81-Recovery\INSTALL.WIM /Index 1

  • REAGENTC /Info

  • Exit

    REAGENTC Create Recovery Partition

However, this way needs some skills and is kind of complex for ordinary people. Is there an easier way to fix Asus Recovery Partition missing problem?

Solution 2: Create Asus recovery partition with AOMEI OneKey Recovery

Don’t worry, here is the savior if you think the above way is complicated. The best system backup and restore software – AOMEI OneKey Recovery Professional will help you to create a new factory recovery partition easily in Windows XP, Vista, 7, 8, 8.1, 10, 11 and Windows Server 2003/2008 (R2)/2012 (R2)/2016/2019, 2022, SBS 2003/2008/2011, WHS 2011 (all editions, both 32-bit and 64-bit). 

And it will contain OS, installed program, personal data, etc on your computer instead of factory image with only a fresh version of Windows. Thus, you don't need to reinstall programs or worry about data losses after Asus system recovery. And it allows you to access this software with fast recovery key F11 (by default) or A key when booting up.

Then, please download this software and follow me to create a new recovery partition to protect your computer.

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1. Launch this software and click OneKey System Backup on the home window.

OKR Backup

2. Tick the first option to backup system to AOMEI OneKey recovery partition. Then, click Next. 

Backup system to AOMEI OneKey Recovery Partition


  • Backup Options: you are allowed to compress the backup image and encrypt it with password.

  • Scheduler: you can backup system in daily, weekly, monthly to continuously protect data.

  • You could backup system to other locations, including an internal secondary disk, an external hard drive, or a removable USB flash drive, etc.

3. Select a partition to create recovery partition and save system image on it, press Start Backup.

Create Recovery Partition

After a few minutes, your Windows operating system will be backed up and a facotry recovery partition will be created in the selected partition automatically.

Then, you can click the Setting icon at the upper right corner,  set F11 or A key pr enable boot menu to enter AOMEI recovery environment during system startup. Also, you can disable it in this window.

Set Recovery Key

Now, you can see these partitions created by AOMEI OneKey Recovery, like this:

AOMEI OneKey Recovery Partition


  • For GPT disk, you will get two partitions: AOMEI (boot partition) and AOMEI Recovery Partition (contains system image file suffix with .adi).

  • For MBR disk, you will get only one AOMEI Recovery Partition.

  • All these two partitions are hidden by default.

  • This powerful software also applied to other brands computers, like HP, Lenovo, Acer, Dell, Toshiba, and IBM, etc.

Now, you could want to onekey recovery system to ealier state or factory settings to fix Asus Recovery Partition missing problem via F11 or A key.


Hope this article can help you repair Asus recovery partition missing and F9 does not work while resetting. In a long run, it's suggested to create a customized recovery partition with Asus one key recovery software - AOMEI OneKey Recovery, which will include an exact copy of your system partition. If you schedule it daily, weekly, or monthly, it will keep the latest data. Thus, it will stay as it is after recovery, no reinstallation and data loss. 

If you just want to backup files or partitions containing data that value to you, it’s highly recommended to try the best free backup software - AOMEI Backupper. You can choose any item you want to backup. It also enable its own recovery partition by AOMEI Backupper recovery environment feature.