How to fix the 0x803FB005 Windows Store error

What is the code: 0x803FB005? How to solve error code 0x803fb005? This Techquack post will show you solutions for the code: 0x803fb005. You can also visit Techquack to find other errors and tips related to Windows.

If you have encountered error 0x803FB005 from Windows 10 Store while installing some apps from Microsoft Store and now you are looking for solutions, then this post can help you to get rid of this problem. Because of this error, you will not be able to download and install some necessary applications on your computer.

Actually, this error does not occur due to any specific reason, it can be caused by many factors such as corrupted system files, faulty Microsoft Store applications, and others. With this error code, you will get an error message on your computer screen:

Something unexpected happened, code: 0x803FB005.

What is the error code for 0x803fb005

What is the error code 0x803fb005

Many Windows 10 users report that they encounter error code 0x803fb005 when trying to install one or more apps from the Microsoft Store. And some say that this problem seems to occur randomly, while others say that it only occurs with specific apps. The error message is shown in the following figure:

Before we get to the solutions for this Windows Store error, you need to know what is causing this code: 0x803fb005. We have analyzed several messages and listed below some of the causes.

What’s the reason for the Windows Store error 0x803FB005?

What is the cause of the 0x803FB005 Windows Store error

We have analyzed this particular problem by reviewing dozens of user reports and trying different repair strategies that have been successfully applied by the affected users.

It turns out that this problem can be caused by a number of different culprits. Here’s a shortlist of scenarios that could lead to this particular error code:

No patch for the problem – it turns out that this particular problem has already been fixed by Microsoft since early 2019. To take advantage of the patch and solve the problem automatically, make sure that you have installed all pending updates and update your operating system to the latest version.

Third-party AV system glitches – Another possible cause of this issue is an overprotected antivirus package. Several affected users reported that the problem stopped occurring after either disabling real-time protection before downloading the application or completely removing the third-party security package.

Windows Warehouse Failure – The Windows Warehouse can also fail due to an ongoing failure. In this particular case, you should be able to resolve the problem by resetting the Windows Store, either through the terminal or through the GUI.

Damage to system files – File damage may also be responsible for this particular error code. If this scenario applies, you may be able to resolve the problem by performing a repair installation or a new installation.

If you are currently having problems resolving error 0x803FB005, there are a number of troubleshooting guides in this article to help you identify and resolve the problem. Below you will find a number of possible solutions that other users in a similar situation have successfully used to fix this error message.

We have categorized the methods by effectiveness and difficulty so that you can solve the problem in the right order. Finally, you should find a solution that solves the problem, regardless of its cause.

Here are the steps to fix error 0x803fb005.

how to fix error 0x803fb005

The Microsoft Store has a troubleshooter.
  1. Click Start
  2. Click the “Enter here to search” button.
  3. Enter “troubleshooting” in the search box.
  4. Click the More Troubleshooting button to open the window shown in the screenshot below.
  5. Select Windows Store Apps and click Run Troubleshoot.
  6. The troubleshooter opens. Select the Apply Fix option for all solutions.
  7. Reboot Windows after you pass the troubleshooter.
Resetting the Microsoft Store
  1. Click the Start button.
  2. On the Start menu, click the Settings button.
  3. Click the Apps button to open the Settings tab in the Snapshot below.
  4. Select Microsoft Store, then click Advanced Settings.
  5. Tap the Reset button.
  6. Click Reset again to confirm.
  7. Reboot Windows after the Microsoft Store restarts.
Deactivate the antivirus program

It is possible that error 0x803fb005 is due to a third-party antivirus program blocking the MS Store. In this case, disabling the antivirus program may solve the problem.

This is done differently in different programs, but most antivirus programs include options in their taskbar context menus that the user can select to disable them.
Right-click the antivirus program icon in the system tray to open a pop-up menu and select the desired option to disable it.

If deactivating the antivirus program fixes the MS Store error 0x803fb005, you can also remove it. This can be done from the Programs and Features applet or by using the virus removal tool. Windows Defender can fill the gap left by an uninstalled anti-virus package.

Resetting Windows Updates

1.) Press the Windows + S key combination.
2.) Type cmd in the search box.
3.) Right-click on the command prompt and select Run as administrator.
4.) Then type these commands separately in the command prompt window:

Net stop wuauserv
Net stop cryptSvc.
Network stop bits.
Network lock msyserver.

5.) Enter the following line and click Return.

Ren C:WindowsSoftwareDistribution SoftwareDistribution.old

6.) Type the following line and press Enter.

Ren C:WindowsSystem32catroot2Catroot2.old

7.) Enter these commands separately to restart the services:

Net start wuauserv

8.) Finally, enter this command:

wuauclt.exe /updatenow.

Reset windows 10
  1. In the Windows 10 search box, type “Reset.”
  2. Click Reset this PC to open the restore options in settings.
  3. Click Start to open the window below.
  4. Select the Save my files option.
  5. Select the Next and Reset options to confirm.

Note: This method should only be used as a last resort. Also, remember to back up Windows 10 before performing a reset.

Most Frequently Asked Questions

  1. Use the Windows Store app diagnostics program.
  2. Check the time on your computer.
  3. Reset the Microsoft Store.
  4. Clear the store cache.
  5. Reset Windows Update components.
  6. Change the registry for connectivity errors.
  7. Check proxy server settings.
  8. Re-register the Microsoft store.

  1. Run the Windows Store diagnostic program.
  2. Reset the Microsoft Store cache.
  3. Check your date and time settings.
  4. Change the region settings on your computer.
  5. Change your Internet connection.
  6. Create a new account.
  7. Re-register the Microsoft Store application using PowerShell.

  1. Windows Updates. Run the Windows Update diagnostic program. Manually reset the Windows Update components.
  2. Microsoft Store. Stop PowerISO related processes. Re-register Microsoft Store applications. Reset the Microsoft Store.
  3. Windows Defender. Remove all installed third-party antivirus programs.

There are several problems with the Microsoft Store, the main one being the lack of apps. The fact that even Microsoft doesn't put all of its apps on the Store doesn't help. Microsoft commands, for example, are not present. Visual Studio Code or Microsoft Office are also missing.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.