Solved: change/set standard user login (Win 7)

on my pc (windows 7, home premium) I made a 2nd account (normal user), but I am mainly using the other account (admin).
when I boot up my pc, at login it always select the 2nd account (have to select the other account (admin) all the time).
is there a way to change this? meaning at login the admin account (/primary account) is selected?
(changing account name (alphabetical order) did not work)

any suggestions?
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