This is a electron-based GUI tool that enables you to open Microsoft Edge Legacy alongside the new Edge Chromium without uninstalling Edge Chromium. It does so by performing registry edits.
Microsoft ended its support on Edge Legacy on the 9th of March 2021, and removed Edge Legacy entirely on 13th of April 2021.
This tool modifies the registry by deleting BrowserReplacement value in the key
32-bit machines: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\EdgeUpdate\ClientState\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}
64-bit machines: HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientState\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}
which is not recommended by Microsoft as stated here. Use this at your own risk!
Microsoft removed Edge Legacy via a "Patch Tuesday" update on 13th of April 2021 for Windows 10 1803, 1809, 1903, 1909, 2004 and 20H2 editions. More information by Microsoft here.
The tool is incomplete and it will probably not be in time before the End of Support for Legacy Microsoft Edge. You can get the release here
Note that the release version is not signed (as that is not free), so it will be marked as an high-risk or potentially harmful application. Just allow this application to run and it will be good.
If you are uncomfortable with the release version, you can follow the steps below to compile your own application.
This source files are build on electron-forge project by Electron Userland.
You will need to install Node.js Version 10 and above, as well as Git.
You will also need npm or yarn installed.
Download the source files by cloning this repository.
Then open command line / terminal and navigate to the directory where you want the project to be. Enter the following command
npx create-electron-app edge-reminiscence
# or
yarn create electron-app edge-reminiscence
Go to the electron-forge project for more details about installing electron-forge.
Go into the edge-reminiscence folder and delete the src and package.json in the folder. Copy the src and package.json from the clone into the folder.
Then cd edge-reminiscence and enter
npm start
to launch the application.
If you want to compile the application as an executable, you can enter
npm run package
# or
npm run make
Then enter the out folder followed by the Edge Legacy Reminiscence-win32-ia32 folder if you run npm run package or make\zip\win32\ia32 folder if you run npm run make. Run the executable and the tool should be working.