Outlook: “Always prompt for credentials” is greyed out

Last Updated: July 27th, 2022/Published On: April 1st, 2019/By /Views: 9712/

If you are wondering why the “always prompt for credentials” is greyed out in later outlook versions, that’s apparently just how it is now. If you have a user that always wants to be asked for creds when opening Outlook create the following reg keys. You can also push these to all domain computers from GPO User configuration > Preferences > Windows Settings > Registry > Registry Item. Just use create and enter the key information.

Outlook 2016

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\Security

Type: Reg_Dword Name: PromptForCredentials value:1

Outlook 2013

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\15.0\Outlook\Security

Type: Reg_Dword Name: PromptForCredentials value:1

Outlook 2010

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\14.0\Outlook\Security

Type: Reg_Dword Name: PromptForCredentials value:1

You have to delete the profile and recreate it after making this key, otherwise it still seems to save the password to credential manager.

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