I had the problem of uninstalling IE 11 at my bank's direction and then QB would not run. Microsoft said to update Windows 10 to Version 21H2 to solve the problem. It did. The reinstalled version has IE buried in it. If you need the link to do this here it use: Download the Windows Media Creation tool: https://go.microsoft.com/fwlink/?LinkId=691209 Run the tool, and then choose the Update/Upgrade option.