System Restore Error 0x80070091 in Windows 10[How to Fix]

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The Windows 10 operating system is becoming a popular operating system day-by-day: but it also gets affected by many issues and problems. These days, some Windows 10 users reported that their system restore is not completing successfully, and they are getting a System Restore Error 0x80070091. In this article, we would like to tell you the answer to the question- How to Fix System Restore Error 0x80070091 in Windows 10? 

What is System Restore Error, and what are the factors?

System restore means: a user can bring his computer back to an earlier point when the system was working perfectly fine. The reason behind this error is something issues with the Windows Apps folder. Basically, if you; are seeing the Error code- 0x80070091, it means the targeted directory is not empty. In another way: some content is present in the WindowsApps folder: which was supposed to be Empty. Maybe an antivirus is blocking the system restore process, or the error has something to do with Synchronized Settings.

Scenarios reported by the users

Windows 10 System Restore did not complete successfully

This error message will appear commonly when you go to the system restore. However, you will be able to resolve this error using any of the methods provided by this guide. If; you are not a Windows 10 user, don’t worry. Given methods will help you to resolve this issue on Windows 7 and Windows 8 as well.

System Restore encountered error, unknown error, unexpected error

You might encounter, sometimes, this error while trying to perform the system restore. Mostly, these issues are caused by corrupted system files. So you have to check for the corruption of the files.

System Restore encountered error, unknown error, unexpected error

System Restore failed due to- Antivirus

If you have installed any antivirus on your system, this may also cause a System Restore error. Installed antivirus may interfere with the OS of your system, and may prevent it from going back to the previous restore point. If you want to know the solution of- “how to fix system restore failed due to antivirus error?” you can check out the solutions provided in this article.

0x80070091 Windows 7

If you are not using Windows 10, then it is also possible that you will see this error. But the methods mentioned in this guide will help you even if you are using Windows 10, Windows 7, or Windows 8- as well.

Method: Fix System Restore Error 0x80070091 in Windows 10

Finding the exact reason for this error is quite difficult but Microsoft has acknowledged this issue and promised to release a full-proof solution to this error. In this guide, we will tell you the method to fix this error, you have to follow the steps which are given below. 

  • Open run, and type CMD in the search bar, you will see the Command Prompt under the best match.
  • Do a right-click on this and select the option- Run as administrator.
  • Now, Command prompt window will appear, simply copy-paste the following given code with the help of Windows 10 keyboard shortcuts.

chkdsk /f /r X: drive letter for the external hard drive

Note- you have to replace – drive letter of the external hard drive.

  • After running the above code, a popup will open and ask to restart your computer. Now, click on yes to reboot your system, and after rebooting, it will scan and indicate all bad sectors. To check press- Y or not to check press- N from your Keyboard.
  • One thing to keep in your mind that close all the running applications of your computer.


You need to backup your data because while performing the check might lead to loss of data stored on your hard drive.

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