What's the difference between a paid Microsoft 365 subscription and the ...
A Free badge means an active Microsoft 365 Family or Personal subscription isn't associated with the account you signed in with. Only the free web versions of Word, Excel, and PowerPoint are available to you.
Microsoft Edge 中的 Internet Explorer 模式 - Microsoft 支持
Internet Explorer 11 支持已于 2022 年 6 月 15 日结束。 如果访问的任何网站需要Internet Explorer 11，则可以在Microsoft Edge中使用Internet Explorer模式打开它。
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Activate Office - Microsoft Support
Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.
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, Microsoft 365 admin, Project for Office 365
Fix Bluetooth problems in Windows - Microsoft Support
Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.
Start your PC in safe mode in Windows - Microsoft Support
Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC.
Download Internet Explorer 11 (Offline installer) - Microsoft Support
To download the offline installer for Internet Explorer 11, choose your language and system below.
安装 Windows 11 的方法 - Microsoft 支持
了解如何安装 Windows 11，包括在“设置”中访问 Windows 更新页的建议选项。
Baixar e instalar ou reinstalar o Office 2019, o Office 2016 ou o ...
Saiba como instalar o Office 2013 no PC ou no Office para Mac 2011.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
在 Windows 中查找 BitLocker 恢复密钥 - Microsoft 支持
了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。