了解如何查找用于激活的 Windows 产品密钥，以及何时改用数字许可证。.

Before you begin, make sure your PC or Mac meets the system requirements. If you already redeemed a product key, you're simply reinstalling the apps, or you know you have an assigned license through work or school, you can skip ahead and go to the section sign in to download and install Microsoft 365 or Office.

Support for home products. Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience. Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft ...

Driver updates for Windows, along with many devices, such as network adapters, monitors, printers, and video cards, are automatically downloaded and installed through Windows Update. You probably already have the most recent drivers, but if you'd like to manually update or reinstall a driver, here's how: Update the device driver.

The Controller Bar is a feature on Windows 11 that allows you to quickly access games and apps using any Xbox controller, including standard controllers, the Elite Controller Series 2, and the Xbox Adaptive Controller.

选择 “布局 > 分隔 符 > 下一页 ”。. 双击新分区第一页上的页眉或页脚。. 单击“ 链接到前一节 ”以将其关闭，并取消链接上一节中的页眉或页脚。. 注意: 页眉和页脚是单独链接的。. 如果使用的页眉和页脚对于每个部分都是不同的，请关闭页眉和页脚的链接 ...

Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it. A digital license (called a digital entitlement in Windows 10, Version 1511) is a method of activation in Windows 10 and Windows 11 that doesn't require you to enter a product key.

If you're already offline and didn't set your device as your designated offline device, you won't be able to play games offline. You need to be online while you do this, and while you launch the game before going offline. To fix this, go online and follow the steps above in “How to enable offline play on your device.”.

Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...

If you're having audio problems with Xbox parties on your Windows device, try the following solutions. Note To use many of the Xbox features within Game Bar, including Party Chat, you must have the Xbox app for Windows installed and be signed in. Get the Xbox app for Windows. Collapse all.