Get started with eye control in Windows - Microsoft Support
Learn how to use eye control in Windows to type with an on-screen keyboard, communicate with people, and control the mouse with your eyes.
Install the Windows 8.1 Update (KB 2919355) - Microsoft Support
Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.
About Genuine Windows - Microsoft Support
Find answers to common questions about genuine Windows software.
Perform an offline system update | Xbox Support
Learn how to update your Xbox console offline. Unplug the network cable if you're using a wired network connection. Power off your console, and then unplug the power cord to ensure that the console is completely powered off.
Insert ASCII or Unicode Latin-based symbols and characters
Learn how to insert ASCII or Unicode characters using character codes or the Character Map.
Applies To:
Excel for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Publisher for Microsoft 365, Excel 2021, Outlook 2021, PowerPoint 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, OneNote 2021, Excel 2019, Outlook 2019, PowerPoint 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016
End of support for Cortana - Microsoft Support
We’re making some changes to Windows and Microsoft 365 that will impact Cortana users. Cortana voice assistance in Windows as a standalone app was retired in the spring of 2023.
Find and lock a lost Windows device - Microsoft Support
Use Find my device to locate and lock your lost or stolen Windows devices.
Applies To:
Microsoft account dashboard
激活 Office - Microsoft 支持
如何激活预安装在新 Windows 10 计算机上的 Office 或使用新的产品密钥。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
Use a proxy server in Windows - Microsoft Support
Learn how to set up a connection to a proxy server on your Windows PC.
Solucionar problemas de Bluetooth en Windows
Aprende a solucionar problemas de Bluetooth en Windows. Resuelve problemas al conectar un dispositivo o accesorio Bluetooth.