In Roman numerals, C stands for the number 100. This is based on the Latin word centrum, which means 100.. As of 2014, Roman numerals are still occasionally used, such as seen in the British monarch Queen Elizabeth II.
A Microsoft account is what you use for almost everything you do with Microsoft devices and services. Itâs an email address and password that you use to sign in to Skype, Outlook.com, OneDrive, Windows Phone, and Xbox LIVE â and it means your files, photos, contacts and settings can follow you to any device.
When you use your Microsoft account to sign in for something like the Microsoft store, youâre really just using it to sign into an online service. It doesnât change your machineâs login because itâs unrelated to your machineâs login. Itâs kind of like logging into Hotmail or Outlook.com.