Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

If you forgot your Microsoft account password, follow these steps. Select Reset password below. Enter the email address, phone number, or Skype name you use to sign in then select Next. We'll ask where you'd like to get your verification code and select Next. Type the requested information and select Send code.

Sign in to the Advanced security options page of your Microsoft Account. Select Add a new way to sign in or verify then choose how you would like to receive security codes. Note: VOIP numbers cannot be added as a way to sign in or get verification codes. We'll send a security code to the new number or email to confirm.

Security. Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or ...

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site.

To see self-help answers, or to get support via email, Select Help from the top menu then Help. Open the Help pane. Enter your question or issue in the Search Help box on the right, and then press Return. If the self-help answers don't resolve your issue, try a different search, or scroll to the bottom of the Help pane and, under Still need ...

若要以其他语言安装 Microsoft 365 或安装 64 位版本 ，请使用下拉列表查找更多选项。. 选择所需语言和位版本，然后选择“ 安装 ”。. 现在你已准备好安装 Microsoft 365。. 请在下方选择与你要尝试安装的版本对应的选项卡。. Office 2019 或 2016 for PC Office 2016 for Mac ...

注: Hotmail または Outlook.com のパスワードは、Microsoft アカウントのパスワードと同じものです。 サインインできるものの Outlook.com で問題がある場合は、[サービス状態] を確認します。 状態が緑色ではない場合は、サービスが正常に動作するようになるまで待ってから、もう一度試してみて ...