Microsoft’s October 2019 Patch Tuesday updates brought a lot of security improvements, especially for Internet Explorer and Microsoft Edge.

Edge is not working on KB4517389

But some of these improvements and changes affected Edge on some Windows 10 PCs. More specifically, some users are complaining that after installing KB4517389, Microsoft Edge stops working:

This is a pretty weird issues because it only affects Edge, and not Internet Explorer or other browsers.

After installing KB4517389 today can’t open Edge. Tried rebooting. Tried uninstalling update (then it worked). Reinstalled update and Edge won’t open. Tried reset and still won’t work. All other browsers work including internet explorer.

Microsoft isn’t aware of the problem and for now, there are no official solutions to solve it.

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What can I do if Edge isn’t working after installing KB4517389?

Despite that, there are a couple of things that you could try to make your favorite browser work again. First, you can try a clean boot, as it allows your PC to run only a minimal set of drivers and programs.

This way, you’ll be able to better pinpoint the issue and make sure that it is an update problem and not a third-party program bug.

Then, you can run the sfc /scannow command in cmd and wait for the process to finish. After that, try to open Edge again.

If this doesn’t solve the probelm, the final thing that you could try is to reinstall Edge through Powershell.

Despite the fact that KB4517389 was recently released, there are a lot of installation problems with it. If you want to find out more, you can check all the installation and boot errors in this article.

Also, the update causes Critical Error, mouse and Bluetooth problems, printer driver issues and Windows Search bugs, and other connectivity problems.

If you want to check all these issues with KB4517389, check out our complete article and learn more about possible issues that you may encounter and how to fix them.

Have you encountered any browser related problems after installing KB4517389 on your Windows 10 PC?

Share your experience in the comments section below.

READ ALSO:

  • How to fix performance issues after installing Patch Tuesday updates
  • Fix Microsoft Edge error “inet_e_resource_not_found”
  • Fix Microsoft Edge crashes with these 3 solutions

If the advices above haven’t solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on TrustPilot.com) to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

Still having issues? Fix them with this tool:

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