This support article provides instruction how to completely delete the Outlook desktop profile, in order to perform a clean setup with your mailbox accounts.


Due to incomplete Microsoft support article solutions, this procedure is necessary to follow, for related issues that occur.


Important: This procedure is data destructive. Backup your Outlook data if you find it necessary.


Solution:

  1. Close the Outlook desktop app, if it is opened
  2. From the taskbar, type  control panel  and select Open
  3. Select Mail (Microsoft Outlook) > Show Profiles


  4. Remove all profiles listed

  5. In File Explorer and using the address bar, go to the following location  %LocalAppData%\Microsoft\Outlook , then delete all data within this file directory

  6. In File Explorer and using the address bar, go to the following location  %AppData%\Microsoft\Outlook , then delete all data within this file directory
  7. Then, in Control Panel, select Credential Manager > Windows Credentials
  8. Remove all Generic Credentials associated with Microsoft Office, and Microsoft 365
  9. Open Microsoft Word, and select File > Account
  10. Sign out of any linked account associated with the Microsoft 365 apps
  11. Select the Start button, then select Settings > Accounts > Email & accounts
  12. Confirm the associated email accounts are removed
  13. Select the Start button, then select Settings > Accounts > Access work or school
  14. Remove any linked account associated with the Microsoft 365 apps
  15. Restart your workstation
  16. Open Microsoft Outlook and setup your mailbox account(s)



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