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How to determine what is causing the problem after you do a clean boot. If your problem does not occur while the computer is in a clean boot environment, then you can determine which startup application or service is causing the problem by systematically turning them on or off and restarting the computer.

Microsoft Edge. 下面介绍如何在新版 Microsoft Edge 中更改主页：. 打开 Microsoft Edge，依次选择“设置及更多” >“设置” 。

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.

Network adapter. Surface device used in. Intel® Wi-Fi 6 AX200, AX201, AX210, AX211. Surface Pro 7 and later generations, Surface Laptop 3 and later generations, Surface Laptop Go (all generations), Surface Laptop Studio (all generations), Surface Go 2 and later generations, Surface Book 3, Surface Studio 2+

First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...

如果应用已打开，请在任务栏上找到应用的图标按钮，长按此按钮，然后向上滑动，直到出现“应用列表”。 如果你使用的是鼠标，请在任务栏上找到应用图标按钮，右键单击此按钮，然后选择“固定到任务栏”。

List view. A unique feature of the Tasks app how it displays tasks and information associated with them in rows and columns. This is called List view, and allows you to change many tasks at once, which wasn't as possible in either To Do or Planner before.

Use the Windows Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).

Keeping leading zeros and large numbers in Excel. Use a custom format to keep the leading zeros. If you want to resolve the issue just within the workbook because it's not used by other programs as a data source, you can use a custom or a special format to keep the leading zeros.