我得到此错误 "在您的帐户中找到的产品不能用于激活 <app>" 如果出现此屏幕，则 Microsoft 365 安装为一年订阅或一次性购买 数字产品密钥会传输到电脑，因此不需要也不会接收打印的产品密钥。 使用 Microsoft 帐户登录以激活 Microsoft 365 。 如果检测到 ...

Note: If it’s been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a system file you can delete.If you need to free up drive space, you can delete it, but keep in mind that you'll be deleting your Windows.old folder, which contains files that give you the option to go back to your previous version of Windows.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

如果没有链接，请参阅 Microsoft 365 或 Office 安装疑难解答。 我收到有关操作系统不受支持的消息： 如果收到不支持的操作系统错误消息，则可能是在尝试在不支持的设备上安装 Microsoft 365 或 Office，例如在电脑上安装 mac 版本的 Microsoft 365 Office，反之亦然，或者尝试在 Chromebook 或其他移动设备上安装 ...

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.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.

还可以从 iPhone® 上的 App Store 下载连接至 Windows ，但这不是必需的。 iPhone® 和电脑之间的此链接使你能够即时访问你喜欢的许多内容。 轻松阅读和回复短信、拨打和接听电话，以及直接在电脑上管理 iPhone® 通知。 要求 手机连接 需要满足以下条件：

你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。

This article might also apply if messages in the PC Health Check app and the Windows Update page in Settings don’t match. If you recently made any changes to your hardware and want to see if your computer now meets the requirements for Windows 11, the easiest way to do that is with the PC Health Check app:

Project Online Professional或Project Online 高级版： 如果你订阅了Project的基于云的解决方案之一，则你将看不到安装它的选项，除非你有分配的许可证。如果你是负责分配许可证的 Microsoft 365 管理员，请参阅向用户分配许可证。