Tim upgraded his Windows 10 OS, but now he's lost access to the administrator account. It won't let him update anything. Leo says it sounds like Windows broke UAC (user account control), which gives that option. Look in there and see if it's been turned off. He can also check to see if the user name has administrator permissions. Outside of that, Tim needs to look at all the accounts and see which one is set up as an admin, and figure out the password. Tim may also be able to find a Windows 10 password cracking app. Or, he could see if he set up his Windows machine with a Microsoft account to log in. There is a process for recovering it.