Using classic Outlook for Windows in business environments
English-only support.
To clear old sign-in credentials in classic Outlook for Windows after a domain change:
- Close Outlook.
- Open Control Panel > Credential Manager.
- If View by is set to Category, open User Accounts first, then Credential Manager.
- Look for saved credentials that contain Outlook in the name.
- Expand each matching entry and select Remove from Vault.
- Remove any additional Outlook-related saved credentials.
- Start Outlook again and sign in with the updated credentials.
If Outlook is still prompting repeatedly, removing the Outlook profile can also help:
- In classic Outlook, go to File > Account Settings > Manage Profiles.
- Select Show Profiles.
- Select the old profile and choose Remove.
Note: Removing a profile deletes the email accounts stored in that profile and removes offline data for that profile. Outlook Data Files (.pst) remain on the computer.
If the account itself also needs to be removed from classic Outlook:
- Open classic Outlook.
- Go to File > Account Settings > Account Settings.
- Select the account and choose Remove.
Note: Removing the account stops send/receive for that account in Outlook, and offline cached content for that account is deleted from the computer.
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