March 02, 2020

Keep the old Edge after installing the new Chromium Edge

Windows, Edge, Browser, Chromium, multi-lang

I was surfing on a Chinese programmer forum last week, and I found a thread that is discussing about the new TTS speaker in the new MS Edge, that she speaks very naturally, just like a human. So, I installed it, and have a taste. I opened Chinese news site and turned on the TTS, and I was impressed. The new TTS speak does sound very natural. So, I tried to open a pdf to see if i can use it to listen to novel, but I found out that it doesn't support pdf file TTS, and the speed of open a pdf file is much slower than the old Edge. Because of that, I go to the system setting and try to set the default pdf reader back to the old edge, but it was gone. The new edge will replace the old edge after installation. So I started googling, to find a way to solve this problem. The found out that Microsoft does support two Edge in one system. You just need to install some policy before the installation of the new Edge.

Here is the link of Microsoft's solution to the problem:
Access Microsoft Edge Legacy after installing the new version of Microsoft Edge

To simplify this process. Follow the follow steps.

  1. Download the policy from
    • Select the latest version, and the Operating System. The click "GET POLICY FILES"

policy dl

  1. Extract the from
  2. Open the, extract the two files named msedge.admx and msedgeupdate.admx from windows\admx to C:\Windows\PolicyDefinitions.
  3. Go to C:\Windows\PolicyDefinitions, and see what folders are in that directory. In my case, I have an en-US folder. I go to windows\admx\en-US in the zip file, and extract msedge.adml and msedgeupdate.adml files to C:\Windows\PolicyDefinitions\en-US. If you found multiple language folders, you can just extract those folder from the zip file to that directory.
  4. Win+R, type in gpedit.msc and click OK, or search group policy in start.
  5. On the left of the Group Policy Window, go to Computer Configuration>Administrative Templates>Microsoft Edge Update>Applications.
  6. Find Allow Microsoft Edge Side by Side browser experience on the right, double click to open, click enable then click OK to close.
  7. Now you can download and install the new edge.

To access the old edge, search Microsoft Edge Legacy in start.

old edge