Windows 10: how do i remove this email/app-account?

how do i remove this email/app-account?when clicking on manage, this pops up but this is another account, not the one that i wanna remove:

:)

 

Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

Removing email account added to Mail app settings

Hi Robert,

Removing or deleting an email account from the Mail app is possible via the Settings in the Mail app. You can do this by following these steps:

• Click the Gear icon in the lower left corner of the Mail app.
• Choose Manage Accounts, then choose the account you want to remove.
• Choose Delete Account.

NOTE: The Delete account option removes the account from the Mail and Calendar apps, but does not affect the account itself. For example, if you remove an Outlook.com account from the Mail and Calendar apps, you can still access that account
using another email client or on the web.

Let us know if you have other concerns about the Mail app.

 

Unauthorized Emails from my account?

It is more than likely that your email account was hacked, either by a virus sniffing your password, or just simply hacked.

Either way, change your password on your email account. Unfortunately the damage by already be done. They already have your contact list and your email address associated with that contact list. There is nothing stopping them from sending out emails using their own SMTP servers to everyone on your contact list and claiming the emails are from your email address. They don't actually have to have access to your yahoo account or even any yahoo server to send emails to people that come from your address.