Windows 10: Cant sign in microsoft account, username changed without my knowledge

I'm currently trying to sign in my Microsoft account and I've been getting the invalid email message every time I enter my email. I've used support and has made me realize that there is a malicious username connected to my email with asterisks. The person supporting me had no solution for me and now i'm basically locked out of the account. ive been looking around in forums trying to find a solution but no luck.

:)

 

change admin username account

Hi
vasilisnikolo,

Are you logged in with the Microsoft account or a local account?

You can follow the steps below to change the username and check if it helps.

• Press Windows key + X key.
• Click on Control Panel.
• Under view, select large icons.
• Go to User Account.
• Click on Manage another account.
• Select the User Account for which you want to select the password.
• Click on Change the username.
• Click on Change Name button.

Hope this information is helpful.

 

Sign in with a Microsoft account instead

I have a Local Account and want to, "Sign in with a Microsoft account instead". I go through all of the required steps including entering my Username and Password. Microsoft accepts everything, then ask me to enter my password one final time. I very carefully enter it exactly as I did before and Microsoft says its not correct. Any help wold be appreciated.

 

Cannot sign in microsoft account.

My device: Lumia 520. GDR2.
I cannot sign in my Microsoft account on my device. It didnt say any error but Microsoft account is not listed in Email and account list. When I click add button, it will show microsoft account option but after press sign in, it is still not shown in email
and account. Another problem is i cannot delete facebook account. Error code: 0x83cf1202. I have tried as suggested here: http://support.microsoft.com/kb/2475837/en-us#step0x83cf1202 but as my Microsoft account is not shown, I cannot do step 6.

Any suggestion?