Personal account conflicting with university enterprise account

My university hasenterprise account and I have been using it. Recently I just bought a personal (educational account). When I try to sign in with my personal account, creative cloud does not let me sign in with a personal account but asks me to sign in with university account (enterprise account). I want to use my personal account but not enterprise account.

My notebook has enterprise account before. I try loggin in on another machine that do not have creative ccloud installed before and I can sign in creative cloud with my personal account. Looks like adobe places a hidden file somewhere that point to the creative cloud enterprise licene. I try uninstall, clean registry and credential but it did't work.

How can I resolve this issue without having to reinstall Windows? Now I have wasted 2 months of subscription fees and I still cannot use any programs.