I have had a personal account through my college for a few years now. I bought a new computer and Microsoft office came with it tied to my personal e-mail. That subscription has expired and I can no longer use my desktop apps. I have signed out, uninstalled the apps, and removed the device from my personal e-mail account. I try to sign in with my school account and it tells me I'm already signed in on this computer and I cannot use my apps.