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.
1 Use a Microsoft account, if possible. 2  That way you can reset your password online if you need to. 3  Set up security info for your Microsoft account, like a hint and a phone number or alternate email where Microsoft can send a verification code.4  See Security info & security codes to learn how.here are three types of accounts you can use to sign in on your Surface: 1  A Microsoft account. 2  You sign in with an email address and password. 3  A local account. 4  You sign in with a user name and password. 5  A domain account. 6  You sign in with a domain user name and a password.