It is possible in most Windows if not all to remove Admin accounts and lock the owner out and force a reinstall. This is NOT something you do unless your goal is to wipe the machine out or lock it down.
Did you try logging out?
my computer suddenly started with administrator acct and not the normal one | use. There is no longer a sign in screen where I entered my password. Comp goes straight to start. (win 10 pro) I have lost access to many of my progs due to this. How do I delete the admin acct. I do not know a lot about this however my own acct is LOCAL with admin properties I think. I have spent a few days getting no where and would really appreciate some help!

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