How to fix Outlook asking for password again and again?

Why does Outlook keep flashing and asking for password?

✅ 1. Restart Outlook and Your Computer

Sometimes, a simple restart clears session or temporary credential issues.

✅ 2. Clear Stored Credentials

Outlook may be using corrupted or outdated credentials.

On Windows:

1. Open Control Panel → Credential Manager.

2. Click on Windows Credentials.

3. Look for entries that start with MicrosoftOfficeXX, Outlook, or your email server.

4. Remove them.

5. Restart Outlook and re-enter your credentials.

✅ 3. Enable “Remember Password”

Make sure the “Remember my credentials” option is checked when prompted.

✅ 4. Check Your Account Settings in Outlook

1. Go to File → Account Settings → Account Settings.

2. Select your email account → Change.

3. Verify the server settings and click Next → Finish.

✅ 5. Update Outlook

An outdated version of Outlook might cause connectivity and credential issues.

• Go to File → Office Account → Update Options → Update Now.

✅ 6. Enable Modern Authentication (Office 365/Exchange)

If you’re using Office 365, make sure Modern Authentication is enabled:

• Admins can check this in Microsoft 365 Admin Center or via PowerShell.

✅ 7. Remove and Re-add Your Account

1. Go to File → Account Settings → Remove your email account.

2. Restart Outlook.

3. Add the account back and sign in again.

✅ 8. Repair Your Outlook Profile

1. Control Panel → Mail → Show Profiles.

2. Select your profile and click Repair or create a new profile.

✅ 9. Disable Add-ins

Corrupt add-ins can interrupt the login process.

• Go to File → Options → Add-ins → Manage COM Add-ins → Disable all and restart Outlook.

✅ 10. Check Antivirus/Firewall Settings

Some security software may block Outlook authentication. Try temporarily disabling it to test.

✅ 11. Contact IT/Admin

If you’re part of a business or school, policies or MFA (multi-factor authentication) issues might need admin intervention.