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.
How to protect your Microsoft account. Help secure your Microsoft account and your computer. Learn how to control access to your Xbox Live account by setting a pass code or passkey, or requiring your Microsoft account password to sign in to your profile.