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 ...

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.

首先在“获取帮助”应用中运行自动音频疑难解答。. “获取帮助”将自动运行诊断，并采取正确的步骤来解决大多数音频问题。. 打开“获取帮助”. 如果“获取帮助”应用无法解决声音或音频问题，请尝试列出的可能解决方案：. Windows 11 Windows 10. 1. 检查扬声器 ...

Windows 11 Windows 10. Turn on your TV or projector. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display. On your PC, make sure Wi-Fi is turned on. On right side of the taskbar, select the Network icon > Cast > pick your display or adapter. Follow any additional instructions on the screen. Otherwise, you're done.

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 ...

Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

To create installation media, go to the software download website, where you'll find step-by-step instructions. On that website, you can select a version of Windows and create your own installation media using either a USB flash drive or a DVD. To go directly to one of the versions, select one of these links: Windows 10 (Then select Download now.)

You'll need: A OneDrive storage location. Internet access. Move files to a new Windows PC using an external storage device. You'll need: An external hard drive or network drive. Note: If you're moving from a Windows 7 PC rather than a Windows 10 PC, see Moving to a Windows 10 PC for info on how to bring your files with you.

If you can't sign in to OneDrive work or school account, try to reset your password or alternatively, please contact your organization's IT Admin. 2. Check for updates. If you can sign in to OneDrive online, but not on your computer, check for updates. If your computer is up to date, reset OneDrive. 3.

Open Device Manager. In the search box on the taskbar, type device manager, then select Device Manager from the menu.