I just installed Windows 10. During installation, I created a sign in password at the login screen. Within 30 minutes of using Windows 10, I went into the Windows Store App and tried to download the Free version of Photoshop Express. To do this, I had to sign into one of my Microsoft accounts. So, I signed into my Hotmail email account. Now, whenever I go back to my login screen (e.g., after I restart my computer), I cannot use the original password that I setup. Instead, the login screen displays my Hotmail account name, and asks me to use that password to login to my computer. How do I disable this? I do not want my operating system to be associated with my Hotmail account.