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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.

To check activation status in Windows 11, select the Start button, and then select Settings > System and then select Activation .. Your activation status will be listed next to Activation.. Check activation status in Settings. You'll see one of these activation status messages on the Activation page:

If you don’t see the Startup option in Settings, right-click (or select and hold) Start , select Task Manager, then select the Startup apps tab. (If you don’t see the Startup apps tab, select More details.) Right-click (or select and hold) the app you want to change, then select Enable to run it at startup or Disable so it doesn’t run.

OneDrive is your online cloud storage within Microsoft 365. It lets you store your individual work files that you don't want your colleagues to have access to unless you choose to share the files with them. OneDrive is part of Windows, so it's simple to make sure all of your computer files are saved to OneDrive, so you can access them from ...

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

If your touchpad isn’t working, it may be a result of a missing or out-of-date driver. Updating or reinstalling your touchpad drivers in Device Manager may help solve the problem. To open Device Manager, enter device manager in Search on the taskbar, then select Device Manager .

Note: To upgrade to Windows 11, devices should meet the Windows 11 minimum system requirements.Some Windows 10 features aren't available in Windows 11. System requirements to experience some Windows 11 features and apps will exceed the Windows 11 minimum system requirements.Find Windows 11 specs, features, and computer requirements

To pin Quick Assist to your taskbar so you can quickly get back to it, after Quick Assist is open, right-click (or press and hold) the icon on your taskbar > Pin to taskbar. If the old app icon still appears on your device, make sure you select the new app icon.

The fourth argument is empty, so the function returns an approximate match. If it didn't, you'd have to enter one of the values in columns C or D to get a result at all. When you're comfortable with VLOOKUP, the HLOOKUP function is equally easy to use. You enter the same arguments, but it searches in rows instead of columns.