解决登录 Xbox 应用的问题. 在电脑上，转到 “Xbox.com ”，然后选择“ 登录 ”。. 如果你的帐户出现问题，该说明将帮助你解决问题。. 如果你无法完成登录页面，请选择“忘记密码”并按照说明进行操作。. 如果这不起作用，请选择“ 开始 ”按钮 > “设置 ...

如果你忘记了你的 Windows 登录信息，请使用我们的自助工具让你重新进入你的帐户： 获取帮助 如果你尝试登录到 Windows 并收到错误消息“我们无法登录到你的帐户”，或者你看到操作中心通知，指出“你已使用临时配置文件登录”，Windows 将创建一个临时配置文件并登录到该配置文件。

AND 和 OR 函数最多可支持 255 个单独条件，但并不建议使用多个条件，因为构建、测试和维护复杂的嵌套公式是非常难的。. NOT 函数仅采用一个条件。. 下面是根据它们的逻辑写出的公式：. 公式. 说明. =IF (AND (A2>0,B2<100),TRUE, FALSE) 如果 A2 (25) 大于 0，并且 B2 (75 ...

Cast to a Windows PC from another Windows PC. On the PC you'd like to project from, select Start > Settings > System > Projecting to this PC . Under Add the “Wireless Display” optional feature to project to this PC, select Optional features . Next to Add an optional feature, select View features, then enter “wireless display.”.

How to open PC Health Check. In Windows, use Search on the taskbar to search for “PC Health Check,” then select it from the list of results. If a PC Health Check update is available, you can quickly install it for the latest version. If you don't have PC Health Check installed, you can install it by going to https://aka.ms ...

Here’s how: Check in quick settings: Select the Network, Sound, or Battery icons ( ) on the right side of the taskbar, look for the Bluetooth quick setting, then select Bluetooth to turn it on. You’ll see “Not connected” if your Windows 11 device isn’t connected to any Bluetooth accessories. Check in Settings: Select Start > Settings ...

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

创建适用于 Windows 的安装介质. Windows 10 Windows 8.1 Windows 7. 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 ...

Where can I find my BitLocker recovery key? BitLocker likely ensured that a recovery key was safely backed up prior to activating protection. There are several places that your recovery key may be, depending on the choice that was made when activating BitLocker:

Create Windows 11 installation media. On the Windows 11 software download page , select Create tool now and follow the instructions to install Windows 11. Warning: Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements.