How to Fix ‘This Page Has Been Blocked by Microsoft Edge’ Error

Navigating to internal enterprise intranets, online development staging environments, or everyday websites in Microsoft Edge only to encounter a red warning screen declaring “This page has been blocked by Microsoft Edge” or “Your administrator has blocked access to this page (ERR_BLOCKED_BY_ADMINISTRATOR)” halts browsing immediately.

Microsoft Edge incorporates multiple layers of security filtering designed to safeguard corporate networks and individual users against phishing, malware distribution, and untrusted protocols. When a website is blocked, root causes typically include Microsoft Defender SmartScreen reputation filters flagging a recently registered or compromised domain, enterprise Group Policy or Mobile Device Management (MDM) URL blocking policies enforcing domain restrictions, Microsoft Family Safety content filters, or corrupted tracking prevention databases within the Edge user profile.

Block Warning	Security Mechanism	Administrative Remedy
Microsoft Defender SmartScreen	Cloud reputation telemetry flags site as potential phishing or malware vector	Bypass warning via More Information or report false positive to Microsoft
ERR_BLOCKED_BY_ADMINISTRATOR	Enterprise Group Policy URLBlocklist enforces explicit domain ban	Audit and modify Edge policy registry keys under HKLM/HKCU
Family Safety Content Filter	Microsoft Family Safety child account restrictions block adult / custom URLs	Manage web browsing permissions in Microsoft Family Safety portal
Tracking Prevention Collision	Edge Strict tracking prevention blocks essential authentication redirects	Add domain exception in edge://settings/privacy
Corrupted User Profile Cache	Stale security certificates or HSTS tokens reject valid TLS handshakes	Purge Edge browsing history, cookies, and cached data

Method 1: Bypass or Report SmartScreen False Positives

If you are confident that the blocked website is legitimate and safe, Microsoft Defender SmartScreen provides a mechanism to override the block and report the evaluation error directly to Microsoft security teams.

1. On the red warning screen in Microsoft Edge, click on More information.
2. If the site is not globally blacklisted, an option labelled Continue to the unsafe site (not recommended) will be visible. Click this link to bypass the block for your current session.
3. To submit a permanent false-positive report to Microsoft security analysts, click Report that this site doesn’t contain threats.
4. In the feedback portal that opens, confirm that you are the website owner or an authorised visitor and submit the review request.

Method 2: Remove Stale Enterprise URL Blocking Policies via Registry

On PCs previously connected to corporate domains, educational institutions, or third-party device management utilities, residual Group Policy registry entries can remain active, blocking target URLs.

1. Press Win + R, type regedit, and press Enter to launch the Registry Editor.
2. Navigate to the following registry key:

   HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge

3. Inspect the key for a subfolder named URLBlocklist.
4. If URLBlocklist exists, review the string values in the right pane. If your blocked website URL is listed, delete that specific string value (or delete the entire URLBlocklist key if you are on a personal PC).
5. Repeat the check in the Current User branch:

   HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Edge

6. Close the Registry Editor, open Microsoft Edge, navigate to edge://policy, and click Reload Policies.

Method 3: Configure Tracking Prevention Exceptions in Edge

When Edge’s Tracking Prevention is configured to Strict, the browser aggressively blocks third-party trackers, which can break cross-site authentication redirects and trigger security block pages.

1. Open Microsoft Edge, click the three horizontal dots in the upper-right corner, and select Settings.
2. Click on Privacy, search, and services in the left sidebar.
3. Under Tracking prevention, if Strict is selected, test switching to Balanced (recommended).
4. Alternatively, scroll down and click on Exceptions.
5. Click Add a site, input the domain of the blocked website, and click Add.
6. Reload the target website to verify that the authentication handshake completes successfully.

Method 4: Audit Microsoft Family Safety Account Restrictions

If your Windows 11 login is linked to a Microsoft Family Safety group as a child or monitored member, automated web filtering actively blocks websites outside an approved educational whitelist.

1. Log in to the primary family organiser account at https://account.microsoft.com/family.
2. Select the member profile associated with your Windows 11 device.
3. Click on Content filters in the left menu.
4. Under Web and search, check if Filter inappropriate websites is enabled.
5. Under Blocked sites, inspect if your destination domain is restricted, or add the website under Allowed sites to explicitly permit access across all Edge sessions.

Maintaining Clean Browser Security in Microsoft Edge

To avoid unexpected security blocking in Microsoft Edge, keep the browser updated to the latest Chromium release via edge://settings/help. Avoid running duplicate security browser extensions that duplicate SmartScreen functionality, as layered web filters can conflict and generate false-positive blocks.