Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
Windows 10 update history - Microsoft Support
Windows 10, version 21H2 update history; July 9, 2024—KB5040427 (OS Builds 19044.4651 and 19045.4651) June 11, 2024—KB5039211 (OS Builds 19044.4529 and 19045.4529)
Use Auto HDR for better gaming in Windows - Microsoft Support
In HDR video games, the increased color range and brightness compared to SDR games gives you a more detailed and immersive gaming experience on your Windows PC.
Office Help & Training
We would like to show you a description here but the site won’t allow us.
Get help with timeline - Microsoft Support
Note: Cross-device syncing of Microsoft Entra user activity history will stop starting in January 2024.Microsoft will stop storing this data in the cloud, aligning with the previous change for Microsoft accounts (MSA) in 2021. The timeline user experience was retired in Windows 11, although it remains in Windows 10.
下载适用于 Surface 的驱动程序和固件 - Microsoft 支持
完成安装更新后,建议安装所有可用的可选更新。 若要安装可选更新,请转到任务栏中的“搜索”框,键入“查看可选更新”,然后从结果列表中选择它。如果更新在 驱动程序更新中可用,请确保已安装所有 “Surface” 命名驱动程序。. 检查是否有可选更新
May 14, 2024—KB5037771 (OS Builds 22621.3593 and 22631.3593)
Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)
Improve accessibility with the Accessibility Checker
Apply recommended actions. In the Accessibility pane, you'll see a list of errors and warnings, with how-to-fix recommendations for each.. To quickly correct the issues, apply one of the recommended actions. For more information on how the findings are categorized, see Rules for the Accessibility Checker. In the Accessibility pane, select an issue under Warnings or Errors.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, OneNote for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel for the web, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Visio Professional 2021, Visio Standard 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Visio Professional 2019, Visio Standard 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Visio Professional 2016, Visio Standard 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin
在 Windows 中更改监视器上的刷新率 - Microsoft 支持
Windows 11引入了一项称为动态刷新速率 (DRR) 的新功能,该功能会根据你当时执行的操作自动调整刷新率。 这可以帮助你获得两全其美:当你需要游戏、浏览或墨迹书写时获得流畅的体验,当你不执行这些类型操作时,电池使用时间更长。
如何下载和安装最新的打印机驱动程序 - Microsoft 支持
大多数打印机都需要安装最新的打印机驱动程序,以便打印机正常运行。 如果你最近从较早版本的 Windows 升级,你的打印机驱动程序可能适用于以前版本,但可能无法使用 Windows 10 正常运行或根本不能运行。
Troubleshoot game or app installation problems on your Xbox console
View your notifications on your Xbox console to make sure you have enough space on your hard drive to install the content. Here’s how: Press the Xbox button to open the guide, and then select the Notifications icon.; See if there are any notifications about low or unavailable hard drive space.