To fix Microsoft Edge error code 20 17 0 error code when you try to sign in, Disable 2-Factor Authentication & Delete User Data and see if it helps.

When you see a Microsoft Edge Critical Error, your browser or system might have been infected by a virus, malware, or adware. Viruses, malware, and adware can enter a user’s computer in ...

Microsoft is adding JavaScript performance improvements to the Chakra engine behind the Edge web browser, which will be available for all Windows 10 users as part of the upcoming Anniversary Update.