Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Microsoft 365 so you only have to do this once.

Here's some of the things you can do in the PC Health Check app in Windows: If you’re currently running Windows 10, PC Health Check provides a comprehensive eligibility check for your device to ensure it meets the Windows 11 minimum system requirements.

消费者客户可以购买适用于 Windows 和 Mac 的 Microsoft Office 2021，商业客户现在可以购买适用于 Windows 和 Mac 的 Microsoft Office LTSC。. Office 2021 和 Office LTSC 2021 是 Office 的下一个永久版本。. 其中包含对本地 Office 的 Microsoft Office 2019 及更早版本的改进。. 有关详细信息 ...

在开始之前，请确保电脑或 Mac 满足 系统要求。. 如果已兑换产品密钥，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 ...

Check for Windows updates. Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

安装 Office. 从虚拟驱动器选择 Microsoft 365 文件夹，然后双击“ Setup32.exe ”安装 32 位版本的 Microsoft 365，或双击“ Setup64.exe ”安装 64 位版本，然后开始脱机安装。. 如果不确定适合自己的版本，请参阅 选择 64 位或 32 位版本的 Office。. 看到消息“ 你已设置完毕 ...

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Below we describe how to install the desktop app that is included with Visio Plan 2, and non-subscription versions of Visio Professional or Visio Standard 2021, 2019, or 2016. If you have Visio Plan 1 see the steps under the tab Visio for the web.

Learn how to improve Windows PC performance if your device is running slowly.