Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Download and install or reinstall Office 2019, Office 2016, or Office ...
From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Use the SUM function to sum numbers in a range - Microsoft Support
You can use a simple formula to sum numbers in a range (a group of cells), but the SUM function is easier to use when you’re working with more than a few numbers. For example =SUM (A2:A6) is less likely to have typing errors than =A2+A3+A4+A5+A6.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
更新和分享你的 Xbox 愿望清单 | Xbox Support
转到 xbox.com/games，然后登录到 Microsoft 帐户。. 选择“愿望清单”，然后选择“设置”图标 。. 在“设置”弹出窗口中，选择“我可以与其他人共享此清单，并且任何人都可以找到并查看”。. 选择“共享愿望清单”图标以复制链接并与他人共享你的愿望清单。.
Windows sign-in options and account protection - Microsoft Support
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.
Earn points with Microsoft Rewards | Xbox Support
Earn points toward rewards by doing the stuff you do every day. It’s easy and it’s free. All you need to do is sign up, and Microsoft Rewards will be included in your Microsoft account: Microsoft Rewards. Once you’ve signed up, sign in to your Microsoft account to see your current points.
在电脑或 Mac 上下载并安装或重新安装 Microsoft 365 或 Office 2021 - Microsoft 支持
在开始之前，请确保电脑或 Mac 满足 系统要求 。. 如果你已兑换产品密钥，只需重新安装应用，或者知道你已通过工作或学校分配了许可证，则可以跳到登录部分 ，下载并安装 Microsoft 365 或 Office 。. 但是，如果是 首次 安装 Microsoft 365 或 Office，可能需要先执行 ...
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Screen mirroring and projecting to your PC or wireless display
If you’re working on a Windows PC and want the apps and content from another device to show on your PC screen, you’ll want to consider mirroring that device‘s screen or projecting it to your PC. Note that you’ll need a device that supports Miracast. Here’s how to mirror another screen or project to your PC. Windows 11 Windows 10.
Download files from the web - Microsoft Support
Get started with Microsoft Edge. There are several types of files you can download from the web—documents, pictures, videos, apps, extensions and toolbars for your browser, among others. When you select a file to download, Internet Explorer will ask what you want to do with the file.
Redeem a gift card or code to your Microsoft account
Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.
Applies To:
Microsoft account dashboard