How to Fix Windows Error Code ERROR_491: Step-by-Step Troubleshooting Guide

Windows Error Code ERROR_491 can be a frustrating obstacle, especially when you’re trying to stay productive or simply enjoy your PC experience. This error often arises due to synchronization issues with your Windows Store, system glitches, or account-related problems. The good news? With a little patience and the right steps, you can resolve it quickly.

In this guide, we’ll walk through the entire troubleshooting process, making sure you get your system back on track efficiently. Let’s dive in!

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What is Windows Error Code ERROR_491?

Before we jump into fixing it, let’s understand what ERROR_491 means. This error generally occurs when there’s a problem syncing your Microsoft account with the Windows Store or during app updates and downloads. It can show up with messages like “Try that again. Something went wrong on our end” or prompt sync issues that prevent accessing certain apps.

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Step-By-Step Guide to Fix Windows Error Code ERROR_491

Step 1: Check Your Internet Connection

Since ERROR_491 can be tied to synchronization and download issues, the first thing to do is ensure your internet connection is stable.

• Action:

  • Open a web browser and try loading several websites.
  • If pages are slow or not loading, reset your router or switch to a different network.
  • Restart your modem/router by unplugging it for 30 seconds and plugging it back in.

Step 2: Run the Windows Store Troubleshooter

Windows has built-in troubleshooters designed to automatically detect and fix common problems with apps and the Store.

• How to run it:

  1. Press Windows + I to open Settings.
  2. Go to Update & Security > Troubleshoot.
  3. Click Additional troubleshooters.
  4. Find Windows Store Apps, select it, then click Run the troubleshooter.
  5. Follow the on-screen prompts and apply any fixes recommended.

Step 3: Reset the Microsoft Store Cache

Sometimes cached data inside the Store might be corrupted, causing errors like ERROR_491.

• Steps to reset store cache:

  1. Press Windows + R to open the Run dialog.
  2. Type wsreset.exe and press Enter.
  3. A black command prompt window will open and close automatically after clearing the cache.
  4. Once done, try opening the Microsoft Store again.

Step 4: Re-Sign into Your Microsoft Account

Sync errors often stem from account authentication issues. Re-signing out and back in can refresh the connection.

• How:

  1. Open the Microsoft Store.
  2. Click on your account profile icon at the top-right.
  3. Select Sign out.
  4. Close and reopen the Microsoft Store.
  5. Click the profile icon again and select Sign in.
  6. Enter your Microsoft account credentials carefully.

Step 5: Check for Windows Updates

Outdated system files or pending updates may trigger ERROR_491.

• How to update:

  1. Press Windows + I to open Settings.
  2. Go to Update & Security > Windows Update.
  3. Click Check for updates.
  4. If updates are found, download and install them.
  5. Restart your PC after installation.

Step 6: Repair or Reset Microsoft Store App

If the error persists, you can repair or reset the Store app without losing your data or, as a last resort, reset it which will delete app data.

• Repair steps:

  1. Open Settings > Apps > Apps & features.
  2. Scroll down to Microsoft Store, click it.
  3. Click Advanced options.
  4. Click Repair. Wait and test the Store again.

• Reset steps (if Repair doesn’t work):

  1. In the same window above, click Reset.
  2. Confirm resetting and try opening the Store afterward.

Step 7: Run System File Checker (SFC) and DISM

Corrupted system files can cause errors. Running these tools can repair system integrity:

• Run SFC:

  1. Type cmd in the Start menu, right-click Command Prompt, and select Run as administrator.
  2. Type sfc /scannow and press Enter.
  3. Wait for the scan to complete and follow any on-screen instructions.

• Run DISM:

  1. In the same command prompt window, type:

     DISM /Online /Cleanup-Image /RestoreHealth

  2. Press Enter and wait for the process to finish.

Step 8: Check Date and Time Settings

Incorrect date and time can cause sync problems.

• Fix your date/time:

  1. Go to Settings > Time & Language > Date & time.
  2. Toggle Set time automatically to On.
  3. If issues persist, toggle it Off, click Change under Set the date and time manually, and enter correct details.
  4. Also, make sure the Time zone is set correctly.

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Additional Tips

• Temporarily disable VPN or Proxy: If you use VPN or proxy services, try disabling them temporarily as they might interfere with Microsoft’s servers.
• Create a new user account: If your user profile is corrupted, creating a fresh profile can bypass certain errors.
• Contact Microsoft Support: If none of the above solutions work, Microsoft Support can provide personalized help.

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Wrap-Up: Fix ERROR_491 in Minutes

Encountering Windows Error Code ERROR_491 might disrupt your workflow, but it’s usually a fixable issue. By methodically running through internet checks, troubleshooting, resetting caches, and repairing system files, you can clear the error and get back to using your apps seamlessly.

Remember, patience is key. Sometimes multiple fixes together lead to a clean resolution. Bookmark this guide and come back whenever you run into synchronization errors or Store problems!

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Did this guide help you fix ERROR_491? Share your experience or ask questions in the comments — we’re here to help!