Important
Working on the latest supported Windows versions. Run Windows Update before following this guide.
1. Open Powershell > RUN AS ADMIN
2. Paste in irm https://gist.github.com/ave9858/c3451d9f452389ac7607c99d45edecc6/raw/UninstallEdge.ps1 | iex and press enter
3. Microsoft Edge will be completely uninstalled.