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Find your IP address in Windows - Microsoft Support
For Wi-Fi connection. Select Start > Settings > Network & internet > Wi-Fi and then select the Wi-Fi network you're connected to.
Device protection in Windows Security - Microsoft Support
Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security.
Product activation for Windows online & support telephone numbers
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:
Windows - Microsoft
修复 Windows 中的声音或音频问题; 设置 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式 USB-C 耳机
Account help
Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.
Shut down, sleep, or hibernate your PC - Microsoft Support
Turn your PC off completely. To shut down, select Start and then select Power > Shut down.. Sleep. Sleep uses very little power, your PC starts up faster, and you’re instantly back to where you left off.
Xbox Support
Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.
Fix USB-C problems in Windows - Microsoft Support
USB-C overview. With a USB-C connection, you can charge your Windows 11 PC, and you can also connect to other USB Type-C devices such as mobile phones, docking stations, display adapters, and other devices that have a USB-C port.
Back up your BitLocker recovery key - Microsoft Support
Save to a file - You can save your recovery key as a plain text file on any device. If you need that file in the future just open it with any text editor like Notepad or Microsoft Word and you'll be able to read the key.
Windows location service and privacy - Microsoft Support
To control location for just your user account, switch the Let apps access your location setting On or Off.If "Location services is off" appears on the settings page, you won't be able to turn on the Let apps access your location setting for an individual user account.