Microsoft customers are often targets of a scam that uses email messages to falsely promise money. Victims receive messages claiming "You have won the Microsoft Lottery!" There is no Microsoft Lottery. Delete the message.
If you have lost money to this scam, report it. You can also send the police report to Microsoft and we will use it to help law enforcement catch the criminals who send out these e-mail messages.
To help protect yourself from these e-mail hoaxes, you can use the same general guidance that you use to protect yourself from phishing scams.