How to Fix Microsoft Edge Critical Error

Error 1603 or 0x00000643 Microsoft Edge Installation or Update

Wondering how to fix Microsoft Edge Critical Error on your PC?

 

Fix: Microsoft Edge Critical Error (Solved)

 

Microsoft has had a long-troubled history with web browsers in the past, but it isn’t ready to give up just yet. Microsoft launched Microsoft Edge in 2020 and surprisingly, the browser turned out to be far better than what was expected of it. 

Considering the latest features and improvements, we wouldn’t mind saying that Microsoft has finally managed to launch a browser that can be taken seriously. 

However, this browser is not entirely free from errors. Several users recently reported that they are receiving the Microsoft Edge Critical Error when they launch their browser. This is a false error message and is typically caused by malicious add-ons or adware. 

If you are facing the Microsoft Edge Critical Error on your PC, you’re in the right place. 

This guide will walk you through the steps of fixing this error in detail. 

Let’s dive right in. 

 

1. Install a Reliable Antivirus Software. 

If you don’t have antivirus software installed on your PC, the first thing you should do after facing the ‘Microsoft Edge Critical Error’ is to install reliable antivirus software. 

An operating system without antivirus software is like a house with an open gate. Malicious programs and viruses can enter anytime and affect the performance of your system. Antivirus software detects potential viruses and attempts to remove them with little to no user input. It decreases the chances of such intrusion in the future as well. 

Some popular antivirus programs include Avast and Malwarebytes. These programs will scan your computer for viruses and remove them in no time. 

 

 

2. Remove Malicious Add-ons. 

Add-ons bring additional functionality in browsers, but at the same time, they have the potential to introduce new risks to your browser. If you are facing the ‘Microsoft Edge Critical Error’ on your PC after installing new add-ons, then try removing them from the browser. There is a high chance the add-ons are causing issues within the browser. 

Here is what you need to do:

  1. Open Microsoft Edge on your PC and click on the More button (three dots) at the screen’s top-right corner. 
  2. Select Extensions from the list available on your screen.

Microsoft Edge Extensions

 

  1. In the Extensions window, locate the add-on you want to remove and click on the Remove option under it. 

That’s it. Once the add-on is removed from your browser, check if the error is resolved. Hopefully, your screen will not display the ‘Microsoft Edge Critical Error’ again. 

 

 

3. Remove Threats Manually. 

If running a scan through antivirus software did not detect or resolve the error in your browser, we suggest removing threats manually on your PC. Sometimes, corruption errors cannot be solved using conventional troubleshooting steps. The only way to resolve them is to remove them manually using Windows programs like the ‘Task Manager’.

Here is how you can remove the threats from your PC manually:

  1. The first is to start your Windows in Safe Mode. Since Safe Mode is a diagnostic mode, it starts Windows in its primary state. 
  2. Once you have successfully launched the Windows in Safe Mode, type Task Manager in the search bar and select Open on the right panel. 
  3. Inside the Task Manager window, go to Processes and search for the deceptive application. The best way to identify deceptive applications is to look for programs with a suspicious name and applications using some Network activity. You can also browse their names to know if the application is authentic. 

Windows Task Manager

 

  1. Once you have identified the application, right-click on it and select Open file location.
  2. Finally, delete the file by pressing the Shift + Delete keys simultaneously. 
  3. Restart your PC and check if doing so resolved the error. 

You should now be able to use Microsoft Edge without any issues. 

 

 

4. Remove Adware Programs. 

Adware is a type of malware that displays unwanted advertisements on your PC. It does not just bombard your device with unwanted advertisements but can also create an open door for malicious programs. As a result, you encounter errors like the Microsoft Edge Critical Error. 

If you have installed an adware program on your PC, we suggest removing it to eliminate the Microsoft Edge Critical Error. 

Here is what you need to do:

  1. Type Control Panel in the search bar and click Open to launch it. 
  2. Inside the Control Panel window, choose Uninstall a program.

Fix: Microsoft Edge Critical Error (Solved)

 

  1. Locate the Adware program you want to uninstall and right-click on it. 
  2. Finally, select Uninstall/Change and click on Yes to remove the program. 

If an adware program was causing the error, removing it will fix the issue. If the error persists, proceed to the next method below. 

 

 

5. Try Using CleanMyPC.

Another easy way to remove adware and malicious add-ons from your PC is to clean the system junk using a reliable PC cleaner. 

Install CleanMyPC on your PC

This solution is perfect for people who are tired of cleaning the system junk manually to maintain the performance of their PC. If you are one of them too, we encourage you to try using CleanMyPC. This easy-to-use tool is designed to scan for junk files within the system and remove the unnecessary ones with little to no user input. 

CleanMyPC comes with a full package of system maintenance tools that can get your PC up and running like new. 

Enhance the performance of your system using CleanMyPC today!

 


Try CleanMyPC Now 


 

 

6. Reset Microsoft Edge Settings. 

If none of the methods mentioned above works for you, we encourage you to go ahead and reset the Microsoft Edge settings. There are times when a bug in the Microsoft Edge causes errors, and the only way to fix it is resetting the browser. 

Resetting the Microsoft Edge settings will delete temporary data like cookies. However, your favorites and saved passwords will not be cleared. 

Here is what you need to do:

  1. Open Microsoft Edge and click on the More button (three dots) at the top right corner of the window. 
  2. Select Settings from the list available on your screen. 
  3. In the Settings window, locate Reset settings and click on it. 

Reset Microsoft Edge Settings

 

  1. Now click on Restore settings to their default values option and select OK

Fix: Microsoft Edge Critical Error

 

  1. Once done, check if the error is resolved. 

Hopefully, resetting the Microsoft Edge settings will fix the Microsoft Edge Critical Error once and for all. 

This sums up our guide on fixing the Microsoft Edge Critical Error. We hope that our troubleshooting steps helped resolve the issue. If you have questions regarding the troubleshooting methods, please let us know in the comment section below. 

 

If this guide helped you, please share it. 🙂

 

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