For whatever reason, you may not like the new Microsoft Edge browser. If you go to Settings > Apps > Apps & Features and search for Microsoft Edge, you will notice that the uninstall button is grayed out, not allowing you to uninstall the new Microsoft Edge on Windows 10.
So what do you do if you want to completely uninstall Microsoft Edge from Windows 10? If you have the Windows 10 version 1803 or newer, you can completely uninstall the new Microsoft Edge (Chromium-based). Here's what you need to do.
1. Find what version of Microsoft Edge that you have. To do this, open a new browser window in Edge and paste the following into the address bar: edge://settings/help In this example, the Edge version number is 83.0.478.64
2. Cut and paste the following address: C:Program Files (x86)MicrosoftEdgeApplication83.0.478.64Installer in Windows Explorer. Everything is dependent on what version of Edge you are running, replace 83.0.478.64 with whatever your version number is in Edge.
3. Hold down Shift and right-click anywhere within the folder and choose Open command prompt window here.
4. In Command Prompt, and cut and paste the following command and press Enter:
setup.exe --uninstall --system-level --verbose-logging --force-uninstall
This command will uninstall the "new" Microsoft Edge (Chromium-based) on Windows 10. Legacy Microsoft Edge will still remain on your Windows 10 PC. You can always go back into Settings > Apps > Apps & Features to verify that the new Microsoft Edge is uninstalled.
You have not completely uninstalled Microsoft Edge on Windows 10, there is one more step to complete if you want to prevent the "new" Edge browser from being reinstalled via Windows Update. There is an edit that needs to be made in the Windows Registry.
Microsoft provides the Blocker Toolkit to handle this Registry edit so you do not have to worry about inadvertently making a mistake. The Blocker Toolkit blocks Windows 10 from reinstalling the new Microsoft Edge via Windows Update. The Blocker Toolkit does not prevent users from manually installing Edge from the internet or installing from an external device.
It is important to note that the Blocker Toolkit will not work if you choose to update to Windows 10 version 20H2, slated to be released later this year. However, if you do not like Microsoft Edge and you want to remove it completely on Windows 10, this method will work for you.