I tried to sign in to my PC, but it seems that someone else had tried to (physically) sign in, but put in the wrong Username over and over again. I can't sign into my PC because the username is incorrect. I know my password, but I can't seem to find a way to change my username (which I guess would be my live.com account information) so I can sign in. I don't know of any other way to do that, except by signing in and changing my settings on my PC, but to do that, I need to sign in, which I am unable to do, since I don't know how to change my username on the sign in page in the first place. 

Does this URL help ? 

http://windows.microsoft.com/en-AU/windows-8/change-microsoft-account-name

there is 2 ways to login to Windows 8.1, using your local account and Microsoft account

local account can be administrator or other user account

http://windows.microsoft.com/en-us/windows/user-accounts-faq#1TC=windows-8

Microsoft account associate with your LiveID

http://windows.microsoft.com/en-us/windows-8/microsoft-account-tutorial

May I know if you are in domain (office network) environment?

Did you notice that Microsoft account login require internet connection?

• Edited by britishdhez 4 hours 17 minutes ago

there is 2 ways to login to Windows 8.1, using your local account and Microsoft account

local account can be administrator or other user account

http://windows.microsoft.com/en-us/windows/user-accounts-faq#1TC=windows-8

Microsoft account associate with your LiveID

http://windows.microsoft.com/en-us/windows-8/microsoft-account-tutorial

May I know if you are in domain (office network) environment?

Did you notice that Microsoft account login require internet connection?

• Edited by britishdhez Thursday, March 19, 2015 3:01 AM

Hi daisymora,

The main issue is the present login account name is incorrect  ,right ?

Is the machine in a domain environment ?Have you got this option to login with another account ?

Best r