A Microsoft account gives you access to several functions on your phone such as Hotmail, Windows Phone Store and SkyDrive. Remember, you need to set up your phone for internet and create a Microsoft account on www.microsoft.com.
Just so you know...
Please select the red text to see instructional images.
Slide your finger left on the display.
Press add an account.
Press Microsoft account.
Activate Microsoft account
Press the field below "Microsoft account" and key in the email address for your Microsoft account.
Press the field below "Password" and key in the password for your Microsoft account.
Press sign in.
Follow the instructions on the display to activate your Microsoft account.