Microsoft Suspicious Connection Blocked - A Guide to Fix It

Some security software reports a blocked notification of suspicious connections against msedge.exe, which may warn users of suspicious Trojan viruses. But why does the "Microsoft suspicious connection blocked" issue occur? Let's find out why through this article on the MiniTool website.

Microsoft Suspicious Connection Blocked

First, what is Microsoft Suspicious Connection Blocked Notification? You may see this warning message from some security software, such as Bitdefender. This notification may be triggered by attempting to access an HTTPS domain with security certificate issues.

Due to some uncertainty in the unsecured domain, where external links do not have any security certificates, users are vulnerable to phishing or malware and inadvertently bundled with some unwanted software. This is why Microsoft's suspicious connection is blocked from notification popups.

Recently, most users have received anti-virus reports that msedge.exe attempts to establish a connection that relies on an expired certificate to connect to deff.nelreports.net.

This may occur because the site no longer has a trusted secure connection and Microsoft needs to update the certificate or issue an Edge update to stop using the URL.

If you can ensure that your domain is secure and correct, you can try the following methods to delete a suspicious MicrosoftEdge.exe connection.

Workaround: Microsoft's suspicious connection is blocked

Method 1: Reset the browser

You can resolve the "Microsoft Suspicious Connection Blocked" issue by resetting your browser.

Step 1: Open your Edge browser, click the three dot icons in the upper right corner, and select Settings from the menu.

Step 2: Click Reset Settings , and then click Restore Settings to Default > Reset .

Method 2: Edit the Hosts file

Another way to get rid of the blocked notification of suspicious connections is to edit the hosts file. Before you start editing, it is best to back up this file in case of problems.

If you are looking for some excellent backup software, MiniTool ShadowMaker may be a better choice. It can back up files and perform quick recovery in simple steps. In addition, it also provides password protection and backup plans and plans to improve the user experience.

Step 1: Open File Explorer and go to C:\Windows\System32\drivers\etc .

Step 2: Locate Copy and paste the hosts file to the desktop and right-click the file to open it through Notepad.

Step 3: Copy and paste the following lines in Notepad:

127.0.0.1 markets.books.microsoft.com

# Block access to damaged Microsoft websites.

# Localhost name resolution is processed in DNS itself.

# 127.0.0.1 localhost

Step 4: Press Ctrl S to save and close it.

Step 5: Press Win R to open Run , and type C:\Windows\System32\drivers\etc to enter.

Step 6: Copy and paste the hosts file on the desktop to this location to replace the original hosts file.

Method 3: Try to use Microsoft Edge in Safe Mode

You can follow the steps below to open Edge in safe mode to see if the "Microsoft Suspicious Connection Blocked" issue is resolved.

The steps are very simple. You simply open Microsoft Edge and click the three dot icon to select the New InPrivate window . Then try to visit the website.

Method 4: Clean up temporary files

You may need to delete some temporary files so that the corrupt cache does not block website access. Open Run and enter the following command one by one to delete all files in the folder.

• temp
• %temp%
• Prefetch

After that, try using your Edge browser and check if the suspicious connection blocked notification appears again.

Protect your data from cyber attacks

Some unknown websites may host malicious viruses or malware, and you may accidentally have some trouble. Due to these unexpected attacks, your data will be at risk, so you can protect your data by backing it up to an external hard drive.

We recommend using MiniTool ShadowMaker. In addition to backups, it can also be used to share data and clone disks. Server backup and Windows backup are both allowed. For more features, download and install the program to enjoy a 30-day free trial.

Summarize:

This article can help you resolve the "Microsoft Suspicious Connection Blocked" issue and provides a range of ways to choose from. Hope this article helps you.

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