How to Fix Microsoft Edge Error Code 3-15 on Windows 11: Step-by-Step Solutions

Microsoft Edge is a popular web browser on Windows 11, but sometimes users encounter error codes that disrupt their browsing experience. One such issue is the Microsoft Edge Error Code 3-15. This error can prevent you from opening the browser or cause it to crash unexpectedly.

Fixing this error doesn’t have to be complicated. With some easy-to-follow steps, you can resolve the issue and get back to browsing smoothly.

In this guide, we will walk you through simple and detailed solutions to fix Microsoft Edge Error Code 3-15 on Windows 11.

Each step includes clear explanations so even beginners can follow along without confusion.

Quick Note Before You Start

Before diving into the fixes, here are a few quick checks and prerequisites to ensure the troubleshooting goes smoothly:

Check your internet connection: A stable internet connection is essential for Edge to work properly.
Restart your computer: Sometimes, a simple restart can clear temporary glitches causing the error.
Update Windows 11: Make sure your system is up to date by checking Windows Updates. Outdated system files can cause compatibility issues.
Close other apps: Running many applications at once can interfere with Edge. Close unnecessary programs before starting the fixes.

Step 1: Clear Microsoft Edge Cache and Cookies

Cached files and cookies sometimes become corrupted and cause errors. Clearing them can often fix browsing issues like Error Code 3-15.

Open Microsoft Edge (if it opens).
Click on the three-dot menu icon in the top-right corner.
Select Settings from the menu.
Go to Privacy, search, and services.
Under Clear browsing data, click Choose what to clear.
Select Cached images and files and Cookies and other site data.
Click Clear now.
Restart Edge and check if the error persists.

Why this helps: Clearing cache and cookies removes old or corrupted data that may interfere with Edge’s normal operation.

Step 2: Repair Microsoft Edge

Windows 11 offers a built-in repair option that fixes common problems with apps without affecting your data.

Press Windows + I to open Settings.
Click on Apps from the sidebar.
Select Installed apps or Apps & features.
Scroll down to find Microsoft Edge.
Click the three dots next to it and choose Modify.
When prompted by User Account Control, click Yes.
In the window that opens, select Repair and wait until the process completes.
Try launching Edge again.

Why this helps: Repairing Edge fixes damaged files or settings that might be causing the error without reinstalling the entire app.

Step 3: Reset Microsoft Edge to Default Settings

If repairing does not work, resetting Edge can restore it to its original state. This removes custom settings but keeps your favorites and passwords.

Open Microsoft Edge.
Click on the three-dot menu and select Settings.
Go to Reset settings on the left menu.
Click Restore settings to their default values.
Click Reset in the confirmation box.
Restart Edge and check if the error is resolved.

Why this helps: Resetting clears problematic configurations that could be triggering the error while keeping important data safe.

Step 4: Reinstall Microsoft Edge

If the above steps fail, reinstalling Microsoft Edge ensures a fresh installation that removes any corrupted files completely.

Press Windows + X and select Windows Terminal (Admin) or Command Prompt (Admin).
Run the following command to uninstall Edge:

winget uninstall Microsoft.Edge

After uninstalling, visit the official Microsoft Edge download page using another browser.
Download and install the latest version of Microsoft Edge.
Restart your computer and open Edge.

Why this helps: A fresh install replaces corrupted program files and resets the browser entirely.

Alternative Solutions and Advanced Options

Run System File Checker (SFC): This tool scans and repairs corrupted system files which might affect Edge.
```
sfc /scannow
```
Run this command in an elevated Command Prompt.
Create a new user profile: Sometimes user profiles get corrupted. Creating a new Windows user account can help identify if this is the cause.
Check for malware: Use Windows Defender or a trusted antivirus to scan your PC. Malware can interfere with browser operations.

Frequently Asked Questions (FAQs)

What causes Microsoft Edge Error Code 3-15?

This error usually occurs due to corrupted browser files, outdated Windows updates, or conflicting software interfering with Edge.

Will resetting Edge delete my bookmarks?

No. Resetting Edge restores default settings but keeps your bookmarks, passwords, and browsing history intact.

Can I fix this error without reinstalling Edge?

Yes. Many users fix Error Code 3-15 by clearing cache, repairing the app, or resetting settings before considering a reinstall.

Is this error specific to Windows 11?

This error is more commonly reported on Windows 11 due to recent updates, but similar issues can occur on Windows 10 as well.

Where can I get official help if I can’t fix the error?

You can visit the Microsoft Edge Support page for official assistance and troubleshooting guides.

When Nothing Works

If none of the above methods fix Microsoft Edge Error Code 3-15, consider the following final steps:

Perform a Windows System Restore: Revert your computer to a point before the error started.
Contact Microsoft Support: Use the official support channels for personalized help.
Use an alternative browser: While troubleshooting, browsers like Google Chrome or Firefox can be used temporarily.

Links to official resources:

Conclusion

Microsoft Edge Error Code 3-15 can disrupt your browsing but is usually fixable with simple steps. Start by clearing cache and cookies, then try repairing or resetting the browser. If needed, reinstall Edge for a fresh start.

Remember to keep your Windows 11 system updated and maintain a clean user environment to prevent such errors. If problems persist, official Microsoft support is always available to help.

Following this guide will help you troubleshoot and fix the error efficiently, so you can enjoy a smooth browsing experience again.