Post questions, follow discussions and share your knowledge in the Outlook.com Community. Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Go to the Microsoft account sign-in page at https://account.microsoft.com and enter your email address. If you see a message that says "We couldn't find an account with that username." or "That Microsoft account doesn't exist", then the address you entered is not a Microsoft account. If you believe it should be:

Change or manage your password or PIN. To change your password or PIN, go to Start > Settings > Accounts > Sign-in options. Select PIN (Windows Hello), and then select Change PIN. Select Password then select Change.

Find operating system info in Windows 11. To find out which version of Windows your device is running, press the Windows logo key + R, type winver in the Open box, and then select OK. Here’s how to learn more: Select Start > Settings > System > About . Open About settings.

已解决. 我们已经解决了该事件，并且已经恢复了正常服务。. 更新时间: 2019年4月8日 上午09:17 ，Dave. 开始时间: 2019年4月8日 上午07:20. 结束时间: 2019年4月8日 上午07:40. 受影响的服务: 即时消息, 登录 Skype.

Check the Xbox services, games, and apps for any service outages.

这是否解决了问题？. 了解 Xbox X|S、Xbox One、Xbox 360 和 Windows 10 上的 Call of Duty（使命召唤）、如何购买该游戏以及从哪里可获取疑难解答帮助。.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC.

解决方案 1：确保你已登录. 你必须登录到 Xbox 服务才能更改隐私和在线安全设置。. 首先，请确保你已登录主机。. 如果你在尝试更改子女帐户或青少年帐户的设置，请确保你已作为 Xbox 家庭组的组织者登录。. 子女和青少年没有权限更改自己的隐私和在线安全 ...

Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.