Windows 10: Im trying to get all previous numbers associated with my account. How do i go about this?

I need to find out all previous numbers associated with my account so i can find out who's been trying to gain access. How would I go about gaining said information? * Moved from Community Center

:)

 

How to change phone number associated with a microsoft account

Hi,

Phone number is one of your security info, which is only used to verify your identity if you're accessing sensitive personal information or if we detect a problem with your account.
To change the phone number associated with your Microsoft account, we recommend to follow the steps below:

• First, go to the
  Security basics page and sign in with your Microsoft account.
• Select Update info.
• Select Add security info. then follow the instructions to enter your email or phone number.
• We'll send a security code to that new email or phone number. Enter that security code, and press
  Next. Your new security info will appear in you list.

Check this
link for Security info & security codes.

Let us know if you need more help.

 

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:

 

How to change phone number associated with a microsoft account

Hi,

You can change the phone number associated with your Microsoft account by going to the Security basics page. Please see
Add security info in the link, Security info & security codes for the steps.

Let us know if you need further help.

Regards.