了解如何创建用于安装或重新安装 Windows 7、Windows 8.1 或 Windows 10 的安装介质。.

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.

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.

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.

首先，在“获取帮助”应用中尝试激活疑难解答。. 获取帮助可指导你完成解决大多数激活问题的正确步骤。. 打开“获取帮助”. 检查 Windows 激活状态. 首先需要查看 Windows 11 是否已激活并链接到你的 Microsoft 帐户。. 将 Microsoft 帐户链接到设备上的 Windows 11 许可 ...

Make sure the device you want to install Windows 11 on meets the minimum system requirements. If your device is currently running Windows 10, we recommend you verify the minimum system requirements using the PC Health Check app. We do not recommend installing Windows 11 on a device that doesn't meet requirements.

当在新设备中首次启动 Windows 10 时，设备上已安装的防病毒保护程序即是你的默认安全应用。. 但是，Windows 安全中心已预安装并可随时使用。. 如果你想要使用 Windows 安全中心，可卸载其他所有防病毒程序，Windows 安全中心即自动打开。. 系统可能会要求重启设备 ...

A digital license (called a digital entitlement in Windows 11) is a method of activation in Windows 11 that doesn't require you to enter a product key. A product key is a 25-character code used to activate Windows. What you'll see is PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX.

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.

Activity history helps keep track of the things you do on your device, such as the apps and services you use, the files you open, and the websites you browse. Your activity history is stored locally on your device. You can manage activity history settings to choose what to store.