I'm trying to upgrade a new Dell laptop with Windows 8 to Windows 8.1. Using the default user logon created at initial boot, trying to upgrade to 8.1 via the Windows Store, I get the following error:
"You need to use an account with Administrator privileges to install Windows 8.1, try logging in with the user account of an administrator of this PC and trying the update again."
Putting aside the grammatical error of Windows Store, I can't tell why it is not recognizing admin privileges.
"net localgroup Administrators"
lists the username in the group.
Creating an additional user with admin privileges to perform the install seemed to work but I don't understand why the original account didn't.