I upgraded a laptop to Windows 8.1 Pro. With Windows 8 I where I could finish the Windows setup process (at the very end) by choosing option "not to use Windows account". There was no such option with 8.1 setup (upgrade) so I used my Windows (MSN) account to finish setup. However now that I am signed in I cannot remove this account and this is not my laptop--was setting it up for a client. So how do I remove my name (msn account) from this laptop? I will be joining it to a domain but I still need to be able to remove this account used to complete the Windows setup with. Searched online and MS without any help--most refer to Windows 8 and not 8.1--thanks. Have already added 2 local accounts but see no option to delete the MS account.