Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

All Outlook Data Files (.pst) and Offline Data Files (.ost) are listed along with the name of the account the files are associated with. If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

If your name, billing address, expiration date, or CVV number has changed for your Microsoft account payment method, you can update it. Update your payment method online. Sign in to the Payment options page with your Microsoft account.

If you're unable to activate Windows 11, the Activation troubleshooter could help. To use the troubleshooter, select Start > Settings > System > Activation , and then select Troubleshoot . Open Troubleshoot settings. You must be signed in as an administrator to use this option.

The Link to Windows app is preinstalled on select Samsung, HONOR, Surface Duo, and OPPO devices that are running Android 9.0 or later. On such devices, you can find the Link to Windows app under the Quick Settings menu by swiping down from the top of your screen.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Describes an update that adds TLS 1.1 and TLS 1.2 to default security protocols in Windows Server 2012, Windows 7 SP1, and Windows Server 2008 R2 SP1.

Unplug the power connector from your Surface and check for damage or debris that could cause a bad connection. If the light continues to flash, follow the steps below. Solid white. If the power connector light is on but you still have the problem, go to Surface battery won’t charge or Surface won’t run on battery.

Check warranty status. To check the warranty status for Microsoft accessories like mice, keyboards, cameras, or headsets, contact us . For more detailed info, see Check your Microsoft warranty and create service orders or Manage devices used with your Microsoft account.

激活有助于验证你的 Windows 副本是否为 正版 ，并且未在超过 Microsoft 软件许可条款允许的设备上使用。. 播放视频时遇到问题？. 在 YouTube 上观看。. 激活 Windows 时遇到问题？. 首先，在“获取帮助”应用中尝试激活疑难解答。. 获取帮助可指导你完成解决大多数 ...