Microsoft Store Error 0x8a150049: Fix It

Microsoft Store error 0x8a150049 usually appears when you try to download or update an app, and it means the Store can’t complete the installation because of a corrupted cache, a stalled update, or a problem with the app’s license. The fix is to clear the Store cache, reset the Store app, and then try the download again — in most cases this resolves it within a few minutes. Below are the exact steps, plus what to do if the error persists.

What Causes Error 0x8a150049

This error code is tied to the Microsoft Store’s download and installation pipeline. It is not a hardware failure or a sign of a damaged system. The most common triggers are:

• Corrupted Store cache – temporary files that help the Store load faster can become stale or damaged, blocking new downloads.
• Pending updates – if Windows itself has an update waiting, the Store may refuse to install apps until the system is current.
• License or account sync issues – the Store checks your Microsoft account’s rights for each app; a temporary sync failure can produce this error.
• Interrupted previous download – a partially downloaded app can leave the Store in a state where it won’t retry automatically.
• Date and time mismatch – Windows uses your clock to validate certificates; if it’s off by more than a few minutes, downloads can fail.

None of these causes require advanced technical skills to fix. The steps below start with the simplest and most effective solution.

First Fix: Clear the Store Cache

Microsoft includes a built-in tool called WSReset.exe that clears the Store’s cache without deleting your installed apps or account info. It is the fastest way to address error 0x8a150049.

1. Press Windows Key + R to open the Run dialog.
2. Type wsreset.exe and press Enter.
3. A blank Command Prompt window will appear – this is normal. Wait for it to finish and close automatically. This can take 30 seconds to a few minutes.
4. The Microsoft Store will open by itself. Try your download again.

If the error disappears, you’re done. If not, move to the next step.

Reset the Store App via Settings

If WSReset doesn’t work, resetting the Store app through Windows Settings does a deeper cleanup – it clears the app’s data, including any corrupted settings, while leaving your Microsoft account intact.

1. Open Settings (Windows Key + I).
2. Go to Apps → Installed apps (or Apps & features on older builds).
3. Scroll to Microsoft Store and click the three-dot menu (or click the app name).
4. Select Advanced options.
5. Click Reset – a confirmation prompt will appear; click Reset again.
6. Wait for the process to finish, then restart your PC.

This step removes the Store’s local data but does not remove your installed apps or your Microsoft account. After the restart, open the Store and sign in again if prompted, then retry the download.

Check Windows Update and Date/Time

Two system-level issues can cause error 0x8a150049 even when the Store itself is healthy.

Windows Update: The Store relies on components that are updated through Windows Update. If you have pending updates, install them first.

1. Open Settings → Windows Update.
2. Click Check for updates and install everything offered.
3. Restart your PC, then try the Store again.

Date and time: An incorrect clock breaks the security certificates the Store uses for downloads.

1. Open Settings → Time & Language → Date & time.
2. Turn on Set time automatically and Set time zone automatically.
3. If they were already on, toggle them off, wait 10 seconds, then toggle them back on.

After both checks, restart and try the download again.

Re-register the Store App with PowerShell

If the error persists, the Store’s installation may have become corrupted at the system level. Re-registering the app with PowerShell rebuilds its registration without reinstalling Windows.

1. Right-click the Start button and select Windows PowerShell (Admin) or Terminal (Admin).
2. Copy and paste the following command, then press Enter:

Get-AppxPackage -AllUsers Microsoft.WindowsStore | Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"

3. Wait for the command to finish – it may appear to hang for a minute or two. When you see the prompt return, close the window.
4. Restart your PC and open the Store.

This command does not delete your apps or files. It only refreshes the Store’s registration. If you get an error saying the command is not recognized, make sure you’re in an administrator window.

What If the Error Only Happens for One App?

If error 0x8a150049 appears only when downloading a specific app, the problem may be with that app’s license or the app itself, not the Store.

• Check your Microsoft account: Open the Store, click your profile icon, and ensure you’re signed in with the same account that owns the app. Sign out and sign back in.
• Run the app troubleshooter: Go to Settings → System → Troubleshoot → Other troubleshooters → Windows Store Apps and run it. This tool automatically detects and fixes common Store problems.
• Uninstall and reinstall the app: If the app is already installed, uninstall it from Settings → Apps, then download it again from the Store. This clears any corrupted local data for that specific app.

If the app is a game or a large program, also check that you have enough free disk space – the Store doesn’t always give a clear “low space” warning before failing with this error.

When to Use the Windows Store Apps Troubleshooter

Microsoft includes a dedicated troubleshooter for Store problems. It is worth running before trying more advanced fixes, as it can automatically repair common issues like broken permissions or corrupted settings.

1. Open Settings → System → Troubleshoot → Other troubleshooters.
2. Find Windows Store Apps and click Run.
3. Follow the on-screen instructions – the tool may ask you to select the app that’s failing, then it will apply fixes.
4. Restart your PC and try the download again.

This tool is safe and won’t change your settings beyond what’s needed to fix the Store. It’s a good middle step between WSReset and PowerShell.

Frequently Asked Questions

Will resetting the Store delete my installed apps?

No. Resetting the Store (via Settings → Apps → Microsoft Store → Advanced options → Reset) only clears the Store app’s own data – like its cache and settings. Your installed apps, games, and files remain untouched. You may need to sign in to the Store again after the reset.

Does error 0x8a150049 mean my Microsoft account is banned or broken?

No. This error is almost always a local issue with the Store’s cache or Windows components. It does not indicate any problem with your account’s status, payment method, or purchase history. If you’re concerned, sign in to account.microsoft.com in a browser to verify your account is active.

Can I fix this error without restarting my PC?

Sometimes. Clearing the cache with WSReset may work immediately without a restart. However, if you use the Settings reset or PowerShell method, a restart is strongly recommended because it ensures all Store services start fresh. Skipping the restart can leave the error in place.

Why does this error happen after a Windows update?

Windows updates can change how the Store’s components interact, and occasionally a leftover cache from the previous version causes a conflict. This is why clearing the cache and resetting the Store are the first steps – they force the Store to rebuild its temporary files to match the new system state.

Is there a way to prevent this error from coming back?

Keeping Windows Update current, avoiding forced shutdowns during Store downloads, and periodically running WSReset if you notice slow Store performance are the best preventive measures. There is no permanent fix because the error is triggered by temporary system states, not a persistent flaw.

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