How to Fix Browsing Issue Caused by Windows 10 Cumulative Update KB4480116

When i reported earlier today, the most recent cumulative updates released by Microsoft for Windows 10 cause a problem when trying to load local webpages in Microsoft Edge.

In updates towards the KB pages of every impacted update, Microsoft states that in some instances, installing these cumulative updates results in the said local websites neglecting to load or making the browser unresponsive. Here’s how Microsoft describes the bug:

“After installing KB4480973, quite a few users are convinced that they cannot load a website in Microsoft Edge using a local Ip. Browsing fails or even the webpage may become unresponsive.”

Before anything, it’s important to realize that Microsoft has started working on a fix, but an ETA isn’t available yet.

The organization says it’ll release a patch “in an upcoming release,” which can mean anything from a cumulative update shipping after the month to the next Patch Tuesday cycle developing February 12.

The glitch has already been confirmed in several cumulative updates, as follows:
Windows 10 version 1809: January 8, 2019-KB4480116 (OS Build 17763.253)
Windows 10 version 1803: January 15, 2019-KB4480976 (OS Build 17134.556)
Windows 10 version 1803: January 8, 2019-KB4480966 (OS Build 17134.523)
Windows 10 version 1709: January 15, 2019-KB4480967 (OS Build 16299.936)
Windows 10 version 1709: January 8, 2019-KB4480978 (OS Build 16299.904)
Windows 10 version 1703: January 15, 2019-KB4480959 (OS Build 15063.1596)
Windows 10 version 1703: January 8, 2019-KB4480973 (OS Build 15063.1563)
“How to fix the problem brought on by these cumulative update”

The workaround on all affected versions is pretty much the same, if you installed the aforementioned cumulative updates, here’s what you ought to do.

As Microsoft explains, the bug occurs when users try to load a local page, so you’ll have to add the page that’s failing to the trusted sites list.

To do this, launch User interface ¡§C observe that User interface is now a second-class citizen on Windows 10, which means you have to open it either by clicking the Start menu and typing its name or by typing Control Panel within the File Explorer address bar.

Next, in Control Panel you need to follow this path:
Control Panel > Network and Internet > Internet Options > Security (tab)

Within this Security tab, click the Trusted sites icon (the green check mark) and then click on the button that reads Sites. You should now visit a small screen that allows you to add new websites to the zone.

The very first thing you must do, and it’s critical to do this, would be to clear the check box next to the option called Require server verification (https:) for those sites in this zone.

Next, you need to enter the address of the local website that failed to load within the field called Add this website to the zone. Make use of the Ip from the page, therefore it must look something like,, or any other pattern that you employ inside your network.

When you do this, check the Require server verification (https:) for those sites within this zone back. Again, it’s crucial that you need to do this after you add some site towards the list.

At this point, everything should be ready, so click the OK button and then close all windows. Before the changes are applied, you need to restart Microsoft Edge browser, so when launching it once again, the page should load correctly.

A reboot of the system isn’t required, but it’s recommended, particularly if you don’t use whatever improvements after making these edits.

Once Microsoft releases a fix, you are able to safely follow these steps once again and remove the web site from the list mentioned previously.

Leave a Reply

Your email address will not be published. Required fields are marked *