If you weren't able to change your password. If you couldn't change your password this way, see Reset your Microsoft account password. Need more help? Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option.

To activate Windows 11 using an internet connection: As Windows 11 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > System > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows.. To activate Windows 11 by phone:

In the following example we used the formula =FILTER(A5:D20,C5:C20=H2,"") to return all records for Apple, as selected in cell H2, and if there are no apples, return an empty string ("").

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

The Snap feature is a great way to improve your productivity by sharing many app windows in a single screen. Different layouts are available with many sizes to choose from, so you can get the most from your favorite apps when you are working on specific tasks.

Tip: You can also check to see what your network adapter supports by opening the Command Prompt (or Terminal), and then typing the command netsh wlan show drivers.Look next to Radio types supported and see if it includes 802.11be (for Wi-Fi 7) or 802.11ax (for Wi-Fi 6/6e) and look under Authentication and cipher supported in infrastructure mode and see if it includes WPA3 Personal and WPA3 ...

The new Microsoft Edge will delete your browsing history, cookies, and site data, as well as passwords, addresses, and form data when you close all InPrivate windows. You can open an InPrivate window in different ways: Select and hold (right-click) the Microsoft Edge logo in the taskbar and select New InPrivate window.

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了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版，包括如何使用有效产品密钥或 Microsoft Store。