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.

Cast to an external display from your 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.

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.

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.

Pair a Bluetooth device in Windows. You can pair all kinds of Bluetooth devices with your PC—including keyboards, mice, phones, speakers, and a whole lot more. To do this, your PC needs to have Bluetooth. Some PCs, such as laptops and tablets, have Bluetooth built in.

Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.

Add, turn off, or remove extensions in Microsoft Edge. Applies To. Extensions, or add-ons, are simple tools that customize your browser experience and offer you more control. Here's how to add, turn off, and remove them in Microsoft Edge .

Codec packs add additional codec support to Windows. Apps like Media Player will then be able to play media files encoded in these formats. The following codecs packs are available: MPEG-2 Video Extension. Adds support for the MPEG-1 and MPEG-2 video formats. HEVC Video Extension.

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

从电脑中，你可以使用预安装在设备上的连接至 Windows 应用或可从 Google Play 或 Samsung Galaxy Store 下载的连接至 Windows 连接到选择 Android、Samsung、HONOR、OPPO、ASUS 和vivo体设备。. 可以通过 Android 设备和电脑之间的连接立即访问喜爱的所有内容。. 轻松阅读和回复短信 ...