A Windows product key is a 25-character code used to activate Windows. It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Locate your product key for Windows 10 or Windows 11

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

To turn off your PC in Windows 10, select the Start button, select the Power button, and then select Shut down.. I'm having trouble opening the Start menu

为群聊命名. 为群组聊天命名，以帮助阐明对话的主题。 视频通话. 为视频通话打开或关闭视频。 音频呼叫. 打开或关闭音频呼叫的音频。 屏幕共享. 与群聊中的参与者共享屏幕。 查看和添加参与者. 查看参与者列表并将人员添加到组。

If you think someone might have unauthorized access to your account, we can protect you by signing you out from all of your trusted devices. Within 24 hours, you will be signed out of browsers, apps and anywhere else your account is used to sign in, except an Xbox console.

Windows 8.1 Windows 8.1 Enterprise Windows 8.1 Pro Windows 8 Windows 8 Enterprise Windows 8 Pro Windows RT Windows 7 Enterprise Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Starter Windows 7 Ultimate Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Standard Windows Vista ...

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.

Microsoft Word オンラインでドキュメントを作成、編集、共有します。 Word for the web を使用してドキュメントを簡単に作成、開き、名前変更する方法について説明します。

Test your camera with the Camera app. Select Start , then choose Camera from your apps. If you're asked to allow access to the Camera, select Yes.If the camera works in the Camera app, the problem might be with the app you're trying to use.

Wait for it to find nearby printers, then locate the one you want to use, and select Add device.If you want to remove the printer later, select it, and then select Remove.