How to fix Microsoft Store error 0x803F800A in Windows?

Issue: Hello. Whenever I try to download an application from Microsoft Store, it says there was an error, and I can't download it. The error code mentioned is 0x803F800A. I am running Windows 10 version 21H2, if that helps.

Solved Answer

Microsoft Store, previously known as Windows Store, is a digital marketplace that hosts thousands of apps in its arsenal, allowing users to access it at any time. Users can access the Store directly from their computer without having to visit any third-party websites, which makes it extremely convenient and secure, as all the applications undergo excessive security checks before being put in there.

Overall, security experts recommend always picking official sources rather than third-party ones, as the latter might push potentially unwanted or even malicious programs via bundlers.

Despite being one of the most useful assets since the Windows 8 release, Microsoft Store has flaws as well. One of the most common complaints is that it sometimes fails to work, and users are faced with errors such as 0x803F800A – an issue that many users have been reporting for several years now.

People might encounter Windows errors under different circumstances. As evident, the Microsoft Store errors occur when users try to download a new app or update an existing one. The 0x803F800A error was seen on all operating system versions, including the latest Windows 11.

The error message users receive is rather generic, and there's not much information provided about why the issue occurred or how to resolve it. This is not surprising, as Microsoft can't provide immediate fixes due to multiple factors that could influence the error's occurrence, and it varies from machine to machine.

How to fix Microsoft Store error 0x803F800A in Windows?

In most cases, the errors in Microsoft Store occur due to a simple bug[1] that should go away in a short amount of time. If it doesn't, there are several methods to initiate the change and return back to normal operation. Corrupted system files, app's bugged caches, and similar issues could be related to the problem – we provide solutions for all of them below.

Before proceeding with 0x803F800A error fixes, we recommend you perform a scan with a powerful PC repair tool FortectMac Washing Machine X9, which can automatically find and replace damaged system components. Thanks to its unique technology, it replaces damaged sectors with brand new ones, consequently fixing the most common Windows issues, including Blue Screen[2] errors, random reboots, DLL[3] errors, registry issues, and much more.

Solution 1. Run the troubleshooter

As it is common in our articles, we recommend starting with the built-in Windows feature – a troubleshooter. While it may not always work and fix the 0x803F800A error, it might point you in the right direction.

  • Type Troubleshoot in Windows search and press Enter
  • On the right side, click Additional troubleshooters
  • Scroll down to find the Windows Store Apps entry
  • Select it and click Run the troubleshooter Run the troubleshooter
  • Wait till the scan is finished and then apply the suggested fixes.

Solution 2. Try logging out and in the Microsoft Store

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Sometimes the issue lies within bugged account data. You might want to try logging out and then back in, and see if that helps.

  • Launch Microsoft Store
  • Click on your Profile picture and click Sign out Relog to Microsoft Store
  • Restart your computer
  • Once back, open the Store again
  • Click on the user icon and select Sign in
  • Enter username and password and see if that solved the problem.

Solution 3. Reset Microsoft Store cache

  • In Windows search, type wsreset.exe and press Enter
  • Wait till a black window shows up – do not close it Reset MS Store cache
  • Once it's gone Microsoft Store should startup
  • Try using the store again.

Solution 4. Run SFC and DISM

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

If the corrupted files are the reason for Store failures, running SFC and DISM scans could fix the problem.

  • Type cmd in Windows search
  • Right-click on Command Prompt and select Run as administrator
  • When User Account Control shows up, click Yes
  • Paste the following command and press Enter:
    sfc /scannow
  • Wait till the scan is finished and run the following commands, pressing Enter each time:
    dism /online /cleanup-image /checkhealth
    dism /online /cleanup-image /scanhealth

    dism /online /cleanup-image /restorehealth Run SFC and DISM
  • Restart your device.

Solution 5. Install all the pending updates

Make sure that all the apps and the operating system have all the available (pending) updates installed.

  • Open Microsoft Store
  • Go to Library
  • At the top-right corner, click Get updates Install all updates
  • Wait till all the updates are applied
  • Next, type in Updates in Windows search and press Enter
  • Select Check for updates and wait till everything is installed
  • If there are optional updates available – install them too
  • Restart your system.

Solution 6. Repair and/or Reset Microsoft store

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.
  • Right-click on Start and pick Apps & Features
  • Scroll down to locate Microsoft Store and click Advanced options
  • Click Terminate and Repair
  • If that does not help, try the Reset option instead. Repair or reset MS Store

Solution 7. Reinstall Microsoft Store app through Powershell

If the above method does not help, you should reinstall MS Store. You can't uninstall it in a regular way, however, so you will have to employ Powershell for the job.

  • Make sure your Microsoft Store is closed and not running in the background
  • Right-click on Start and select PowerShell (Admin)
  • Paste the following command and press Enter:
    Get-AppXPackage *Microsoft.WindowsStore* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\\AppXManifest.xml”}
  • Close Powershell. Reinstall MS Store

Repair your Errors automatically team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

do it now!
Download Fix
do it now!
Download Fix
Compatible with Microsoft Windows Compatible with OS X
Still having problems?
If you failed to fix your error using FortectMac Washing Machine X9, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Fortect - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Mac Washing Machine X9 - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Fortect malware removal tool.To repair damaged system, you have to purchase the licensed version of Mac Washing Machine X9 malware removal tool.

Prevent websites, ISP, and other parties from tracking you

To stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous by encrypting all information, prevent trackers, ads, as well as malicious content. Most importantly, you will stop the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.


Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost. To recover lost files, you can use Data Recovery Pro – it searches through copies of files that are still available on your hard drive and retrieves them quickly.


About the author
Jake Doe
Jake Doe - Computer technology geek

Jake Doe is the news editor at UGetFix. Since he met Ugnius Kiguolis in 2003, they both launched several projects that spread awareness about cybercrimes, malware, and other computer-related problems.

Contact Jake Doe
About the company Esolutions


What you can add more about the problem: "How to fix Microsoft Store error 0x803F800A in Windows?"