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Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
From the Microsoft 365 home page select Install apps. Select Install (or depending on your version, Install apps> ). From the home page select Install apps (If you set a different start page, go to aka.ms/office-install .) For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn/account.
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
Change the email address or phone number for your Microsoft account
Add, remove or update an email address or phone number. If you want to make changes to the email addresses or phone numbers associated with your Microsoft account, use our guided support tool below to help you update the right information in the right way.
Applies To: Microsoft account dashboard
Uninstall or remove apps and programs in Windows
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.
Fix Bluetooth problems in Windows - Microsoft Support
If you run into problems trying to connect to a Bluetooth device, here are some troubleshooting steps to try. Note: For general info about how to connect a Bluetooth device to your PC, see Pair a Bluetooth device in Windows.
Fix microphone problems - Microsoft Support
Select Start > Settings > System > Sound. In Input, select a microphone to see its properties. In Input volume, make sure the blue bar adjusts as you speak into the microphone. If it doesn't, go to Test your microphone and Start test. This will help you troubleshoot any issues with your microphone.
Change the email address or phone number for your Microsoft account
Follow these steps to reset your Microsoft account password. Follow the steps on this page to change the Microsoft account email address or phone number (also known as your account alias or username) that you use to sign in.
Global Customer Service phone numbers - Microsoft Support
To find a customer service phone number in your country, please click a region and find your country. Note: Support cases for Surface devices may only be initiated online.
保护玩家免受市场盗窃和诱骗 | Xbox Support
Xbox 网络上的市场盗窃情况有哪些示例?. 市场盗窃的示例包括: 从非法第三方网站购买或兑换游戏内容或代码. 声称成功兑换的代码无法从 Xbox 支持获取其他内容或资金. 滥用 Microsoft 退款策略,或通过向你的银行或金融机构申请“退单拒付”以规避退款政策. 在 ...
全球客户服务电话号码 - Microsoft 支持
全球客户服务电话号码. 要查找你所在国家/地区的客服电话号码,请单击一个地区并查找你所在的国家/地区。. 注意: Surface 设备的支持案例只能 在线 启动。. 本页提供 Microsoft 客服的电话号码。.
通过 Xbox Game Pass 获取 EA Play 订阅会员资格
如果你是 Xbox Game Pass Ultimate 会员,你将自动在主机上获得 EA Play 订阅会员资格,并可通过主机上的 Xbox Game Pass 体验浏览和下载 EA Play 游戏。. 如果你是 Xbox Game Pass Ultimate 或 PC Game Pass 会员,则需要关联你的 EA 和 Xbox 帐户,然后确保你的电脑上安装了 EA Desktop ...