Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.

Troubleshoot issues that occur when setting up external monitors. If you are trying to set up an external monitor and it’s not working, press the Windows logo key + P to make sure that the Extend option is selected. If the Extend option is selected, try the following troubleshooting tips.

Here's an example of how to use VLOOKUP. =VLOOKUP(B2,C2:E7,3,TRUE) In this example, B2 is the first argument—an element of data that the function needs to work.For VLOOKUP, this first argument is the value that you want to find.

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。

On your home router. Try these things first to help you fix or narrow down the connection problem. Check the Ethernet cable and connection.Make sure the Ethernet cable is securely plugged into the Ethernet port on both your router and Windows 11 PC.

In the Step 1: Select condition(s) list, select the check boxes for any options that you want, and then click Next.. If you do not select any check boxes, a confirmation dialog box appears. If you click Yes, the rule that you are creating is applied to all messages that you send.

In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day).

You can right-click the contact group and select Delete from the menu or click the group, then select Delete from the Ribbon.. Contacts are not deleted, only the contact list.

Unlike in previous versions of Windows, you’ll need to use the media creation tool to create an ISO file to install Windows 10. Make sure you have a license to install Windows 10, and then follow these steps: