Outlook Fails to Connect (Opens default browser - OPX in URL)

Issue:

Upon opening Outlook, profile would not connect

Default browser opens and gets stuck on signing in account

URL has 'opx' after https://outlook.office.com

Pre-requistes

Verify you can add user's account under another Windows profile (Eliminates network or local computer issue)

Resolution

Step #1: Close all Office apps

Step #2: Open Regedit

Navigate to HKEY_CURRENT_USER\Software\Microsoft

Rename Office to Office.OLD

Step #3: Open File Explorer

Navigate to C:\Users\<user>\AppData\Local\Microsoft

Rename Outlook to Outlook.old

Step #4: Reboot computer

Step #5: Open Word/Excel

Reactivate software

Open Outlook

If initial profile doesn't work, create new profile and should connect