Troubleshooting Guide: Fix 0x00000191 Microsoft Store Error in Windows 11

Table of Contents

The Microsoft Store can sometimes fail to launch on Windows 11 and Windows 10 systems, displaying the error code 0x00000191. This issue can affect users in various environments, including business and personal use. This guide outlines several steps to troubleshoot and resolve the 0x00000191 error preventing the Microsoft Store from opening or functioning correctly.

Initial troubleshooting steps for the 0x00000191 error involve simple system checks that can often resolve temporary glitches. Before proceeding with more complex solutions, it is highly recommended to first reboot your computer and your network router. A simple restart can clear up temporary issues that might be interfering with the Microsoft Store’s connection or functionality.

Another crucial initial step is ensuring your Windows operating system is up to date. Microsoft frequently releases updates that include bug fixes and improvements for built-in applications like the Microsoft Store. Outdated system files or components can sometimes lead to unexpected errors. To check for updates, navigate to Settings > Windows Update. If updates are available, download and install them, then restart your computer and check if the 0x00000191 error persists.

If these initial steps do not resolve the issue, the problem may lie deeper within your system or network configuration. The following detailed solutions address various potential causes for the 0x00000191 Microsoft Store error.

Comprehensive Solutions to Fix Error 0x00000191¶

The following methods offer a range of troubleshooting steps, starting from basic network checks to more advanced system repairs. Work through these solutions systematically to identify and fix the root cause of the 0x00000191 error.

1] Check Your Network Connection and Stability¶

A stable and reliable internet connection is fundamental for the Microsoft Store to function correctly. Errors like 0x00000191 can sometimes indicate underlying network problems, such as low bandwidth, unstable connectivity, or excessive latency. The Microsoft Store requires sufficient bandwidth to load its interface, display app listings, and handle downloads.

Begin by checking your internet speed. You can use online speed test services to measure your current download and upload speeds. Compare these results to your subscribed internet plan to ensure you are receiving adequate bandwidth. If your speed is significantly lower than expected, this could be a contributing factor to the error.

In addition to speed, check the stability of your connection. Intermittent drops or high ping can disrupt the communication between the Microsoft Store app and Microsoft’s servers. If you are on a wireless network, try connecting your computer directly to the router using an Ethernet cable to rule out Wi-Fi signal issues. Rebooting your router has already been suggested as an initial step, but if you experience persistent network problems, consider contacting your Internet Service Provider (ISP). They can help diagnose potential issues with your line or equipment that are beyond your control.

Furthermore, ensure your computer’s network adapter drivers are up to date. Outdated drivers can sometimes cause connectivity issues. You can check for driver updates through the Device Manager. Right-click the Start button, select Device Manager, expand Network adapters, right-click your adapter, and choose “Update driver.” Select the option to search automatically for updated driver software.

If your network seems generally functional for other applications but the Microsoft Store is still failing, consider temporarily disabling your firewall or antivirus software. Sometimes, overly aggressive security software can mistakenly block the Microsoft Store’s internet access. Remember to re-enable your security software after testing.

2] Disconnect Any VPN or Proxy Network¶

Connecting to a Virtual Private Network (VPN) or using a proxy server can sometimes interfere with the Microsoft Store’s ability to determine your geographic location. The Microsoft Store tailors content and availability based on your region. If your VPN or proxy causes your apparent location to differ significantly from the region associated with your Microsoft account or Windows settings, it can lead to authentication errors or connectivity issues like 0x00000191.

Microsoft services often perform checks to verify that your location aligns with your account details and regional settings. A mismatch caused by a VPN or proxy can trigger security protocols or simply confuse the application’s regional settings, preventing it from loading correctly. This is especially true during the initial launch or configuration.

To troubleshoot this, temporarily disconnect from any active VPN connection or disable any proxy settings configured on your system. You can typically disconnect from a VPN directly through its software interface. For proxy settings in Windows, go to Settings > Network & internet > Proxy. Ensure “Automatically detect settings” is turned on and “Use a proxy server” is turned off, unless you are specifically required to use a proxy for your network environment (like in a corporate setting).

After disconnecting from the VPN or disabling the proxy, try opening the Microsoft Store again. If it opens successfully, the VPN or proxy was likely the cause. You might need to adjust your VPN/proxy settings or temporarily disable them whenever you need to access the Store. If you require the VPN/proxy for other tasks, you can reconnect after the Store has loaded and is functioning.

3] Verify and Change Language and Region Settings¶

The Microsoft Store’s content, currency, and service availability are strongly tied to your system’s configured language and region settings. A mismatch between your actual location, your Windows region setting, and the region associated with your Microsoft account can potentially cause operational errors like 0x00000191. This is similar to the VPN/proxy issue but relates to the system’s explicit configuration.

Ensure that your system’s language, region, and time zone settings accurately reflect your current location. Even if these were set correctly during the initial Windows setup, they might have been inadvertently changed later. Incorrect time zone settings, for instance, can sometimes lead to authentication problems with online services.

To check and adjust these settings in Windows 11:
1. Open Settings by pressing Windows key + I.
2. In the Settings window, click on Time & language in the left-hand menu.
3. Click on Date & time and ensure the correct time zone is selected. You might also want to toggle “Set time automatically” and “Set time zone automatically” off and then on again to resynchronize.
4. Go back to Time & language and click on Language & region.
5. Under “Country or region,” select your current country.
6. Under “Windows display language,” ensure your preferred language is selected. If not present, you might need to add it.

After making any adjustments, restart your computer. Try opening the Microsoft Store to see if the error is resolved. Some users have reported success by temporarily switching their region to “United States” and then switching it back to their actual region after verifying if the Store works with the US setting. This can sometimes refresh the regional configuration for the Store app. If changing back causes the error to reappear, there might be a specific issue with the Store’s availability or configuration for your actual region.

4] Run WSReset.exe to Reset Microsoft Store Cache¶

The Microsoft Store, like many applications, uses a cache to store temporary data, which helps it load faster and perform more efficiently. However, this cache can sometimes become corrupted or contain outdated information, leading to errors or unexpected behavior, including the 0x00000191 error. Resetting the Microsoft Store cache is a common and effective troubleshooting step.

Windows provides a built-in utility specifically for this purpose: WSReset.exe. This command-line tool clears and resets the cache for the Microsoft Store without affecting your installed apps or account settings. It’s a quick and safe method to resolve potential issues stemming from a corrupted cache.

To run the WSReset utility:
1. Press the Windows key + R simultaneously to open the Run dialog box.
2. In the “Open:” field, type wsreset.exe.
3. Click OK or press Enter.

A black command prompt window will appear. Do not close this window manually. It will automatically close after the cache reset process is complete. Once the window closes, the Microsoft Store application should automatically launch. If it doesn’t launch immediately, wait a few moments, and then try opening it from the Start menu or taskbar. After running WSReset, it’s a good idea to restart your computer again before attempting to use the Store, just to ensure all changes are fully applied.

Running wsreset.exe is a fundamental step when troubleshooting Microsoft Store issues and should be attempted relatively early in the process if initial reboots and checks fail.

5] Reset and Repair Microsoft Store via Settings¶

If simply clearing the cache with WSReset.exe doesn’t fix the 0x00000191 error, the Microsoft Store application itself might have corrupted files or settings. Windows provides built-in options to repair or reset specific applications through the Settings app. The “Repair” option attempts to fix issues with the app without deleting any data, while the “Reset” option reinstalls the app’s initial configuration, similar to a fresh installation, clearing all app data but typically preserving the app itself.

The steps to access these options vary slightly between Windows 11 and Windows 10.

For Windows 11:
1. Open Settings by pressing Windows key + I.
2. Click on Apps in the left-hand navigation pane.
3. Select Installed apps from the list on the right.
4. Scroll down or use the search bar to find “Microsoft Store” in the list of installed applications.
5. Click the three vertical dots (⋮) next to “Microsoft Store.”
6. From the context menu, select Advanced options.
7. In the “Advanced options” page, find the “Reset” section.
8. First, click on the Repair button. Wait for the process to complete. This is a quick attempt to fix minor issues.
9. If the error persists after repairing, return to the “Advanced options” and click on the Reset button. A warning will appear indicating that app data will be deleted. Click Reset again to confirm.

For Windows 10:
1. Open Settings from the Start Menu.
2. Click on Apps.
3. Select Apps & features from the left-hand menu.
4. Scroll down or search for “Microsoft Store” in the list of apps.
5. Click on “Microsoft Store.”
6. Click on Advanced options.
7. In the “Advanced options” screen, find the “Reset” section.
8. Start by clicking the Repair button. Allow it to finish.
9. If the problem remains, click the Reset button. Confirm the reset when prompted.

After performing either a repair or a reset, close the Settings app and attempt to open the Microsoft Store. A reset might require you to sign in to your Microsoft account again the first time you open the Store. This process addresses potential corruption within the Store’s local installation files and settings.

6] Re-register All Microsoft Store Apps Using PowerShell¶

If resetting the Microsoft Store app itself doesn’t resolve the 0x00000191 error, there might be an issue with the registration or provisioning of all Universal Windows Platform (UWP) apps, including the Microsoft Store. Re-registering these apps can fix potential corruption or configuration problems at a deeper system level. This process essentially re-registers the app packages with the operating system, ensuring they are correctly linked and configured.

This solution involves using PowerShell, a powerful command-line shell and scripting environment. You will need to run a specific command with administrative privileges to re-register all UWP apps for the current user or all users on the system. The most common command targets the Microsoft Store app package specifically but aims to fix underlying registration issues that could affect it.

Here’s how to re-register the Microsoft Store app using PowerShell:
1. Search for “PowerShell” in the Windows search bar.
2. Right-click on “Windows PowerShell” (or just “PowerShell”) in the search results.
3. Select “Run as administrator.” This is crucial as the command requires elevated permissions.
4. If prompted by User Account Control (UAC), click Yes.
5. In the PowerShell window, carefully type or copy and paste the following command:

Get-AppxPackage -allusers Microsoft.WindowsStore | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

This command finds the package information for the Microsoft Store for all users (Get-AppxPackage -allusers Microsoft.WindowsStore) and then pipes that information (| Foreach) to a command that attempts to re-register the app package using its manifest file (Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml").
6. Press Enter to execute the command.
7. You might see some text or progress indicators in the PowerShell window. Ignore any red error text that might appear related to other apps you don’t have installed; focus on whether the command executes without specific errors related to the Microsoft Store package itself.
8. Once the command prompt returns (meaning the command has finished running), close the PowerShell window.

After running this command, it is highly recommended to restart your computer. This allows the system to fully apply the changes made by the re-registration process. After the restart, try opening the Microsoft Store again. This step can often resolve issues caused by damaged or incorrectly registered app packages.

7] Reinstall Windows Using Windows Update¶

If none of the above troubleshooting steps have resolved the 0x00000191 Microsoft Store error, the issue might stem from more fundamental problems with your Windows operating system files or configuration that cannot be fixed by standard repairs or resets. In such cases, reinstalling Windows can be a viable solution.

Modern versions of Windows (Windows 11 and Windows 10) offer a convenient option to “reinstall” the operating system using Windows Update without losing your personal files and applications. This process downloads a fresh copy of the Windows system files and reinstalls them, effectively repairing system corruption while preserving your data, installed programs, and most settings. This is less drastic than a clean install, which wipes the entire drive.

This feature is often referred to as an “in-place upgrade” or “repair install” but is accessible directly through the Windows Update settings in Windows 11.

To reinstall Windows 11 using Windows Update:
1. Open Settings by pressing Windows key + I.
2. In the Settings window, click on System in the left-hand navigation pane.
3. Scroll down the list of System options on the right and click on Recovery.
4. Under the “Recovery options” section, look for “Fix problems using Windows Update.” This section provides an option to reinstall your current version of Windows.
5. Click on the Reinstall now button associated with this option.
6. A blue window will appear, preparing for the reinstallation. You might see options or information about what will happen.
7. Typically, you will be prompted to confirm the process. Ensure you understand what will be kept (usually files and apps) and what might be reset (some settings). There might be a checkbox like “Automatically restart my PC 15 minutes after installation”; you can check this for convenience.
8. Click OK or a similar confirmation button to begin the process.

Your computer will download the necessary files and proceed with the reinstallation. This will involve one or more restarts. The process might take a significant amount of time, similar to a major Windows version upgrade. Ensure your computer is connected to a power source and the internet throughout the process.

Once the reinstallation is complete and you log back into your desktop, the core Windows system files, including those related to the Microsoft Store, will have been replaced with fresh copies. Open the Microsoft Store to check if the 0x00000191 error has been resolved. This step is quite comprehensive and often fixes persistent issues that simpler methods cannot address.

Additional Considerations¶

If after trying all these steps, you still encounter the 0x00000191 error, there could be a specific software conflict, a deeper system file corruption not fixed by the reinstall option, or even a hardware issue. In such rare cases, consulting Microsoft Support or performing a clean installation of Windows (which involves formatting the drive) might be necessary, but these are much more drastic measures.

Ensure that your user account permissions are correctly configured. Sometimes, issues can arise if your user profile is corrupted or lacks the necessary permissions to access system resources required by the Microsoft Store. Creating a new user profile and testing the Store from there can help diagnose if the issue is profile-specific.

Keep your Windows operating system and drivers consistently updated. Microsoft frequently releases patches that address known issues. Regularly checking for updates can prevent the recurrence of errors like 0x00000191.

Frequently Asked Questions¶

How do I fix Microsoft Store not working on Windows 11?
If the Microsoft Store is not working, a common first step is to reset its cache using the wsreset.exe utility. Open the Run dialog (Win + R), type wsreset.exe, and press Enter. Wait for the command window to close and the Store to launch. If that doesn’t work, try repairing or resetting the app from Settings (Apps > Installed apps > Microsoft Store > Advanced options > Repair/Reset) or re-registering the app via PowerShell as an administrator.

How to repair Microsoft Store?
You can repair the Microsoft Store through the Windows Settings. In Windows 11, go to Settings > Apps > Installed apps > Microsoft Store > Advanced options. There, you will find a “Repair” button. Clicking this will attempt to fix issues with the application without affecting its data. If Repair does not work, the “Reset” option in the same location performs a more thorough reset.

These steps cover the most common solutions for the 0x00000191 error and related Microsoft Store issues. By following these methods, you should be able to restore the functionality of the Microsoft Store on your Windows 11 system.

Did these troubleshooting steps help you fix the 0x00000191 error? Do you have another solution that worked for you? Share your experience and insights in the comments section below to help others facing the same issue.