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Find your Windows product key - Microsoft Support
Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.
Applies To: Microsoft account dashboard
I can't sign in to my Microsoft account - Microsoft Support
Learn how to fix problems signing into your Microsoft account. Resolve password verification, locked account, and other Microsoft account login issues.
Applies To: Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Microsoft 365 for home, Outlook.com, GroupMe, Microsoft account dashboard, Microsoft Teams, Microsoft Teams personal, Microsoft To Do, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows, Outlook for Android, Outlook for iOS
Send feedback to Microsoft with the Feedback Hub app
Unlock Achievements based on providing feedback and completing Quests. For more on the Windows Insider program and how you can join, see the Windows Insider site. Learn how to use Feedback Hub to report problems or send suggestions to Microsoft.
使用 Microsoft Rewards 赢得积分 | Xbox Support
使用 Microsoft Rewards 赢得积分. 做日常所做的事,即可赢得奖励积分。. 这很简单,而且免费。. 只需注册即可将 Microsoft Rewards 包含在 Microsoft 帐户中:. Microsoft Rewards. 注册后,登录到 Microsoft 帐户可查看当前积分。. 在 Bing.com 上,还可在帐户名称旁看到总积分。.
透過 Microsoft Rewards 獲得點數 | Xbox Support
將 Microsoft Rewards 應用程式下載到您的 Xbox 主機,即可在遊戲或購物的同時,追蹤並賺取點:. 請按 [Xbox] 按鈕 以開啟快顯功能表,然後前往 [Microsoft Store]。. 選取 [搜尋],然後在搜尋方塊中輸入 Microsoft Rewards。. 從結果中選擇 Microsoft Rewards 應用程式,然後將它 ...
Protect yourself from tech support scams - Microsoft Support
Help Microsoft stop scammers, whether they claim to be from Microsoft or not, by reporting tech support scams at: www.microsoft.com/reportascam. You can also report unsafe websites in Microsoft Edge by selecting Settings and More > Help and Feedback > Report unsafe site when you encounter something suspicious.
获取有关数字代码或礼品卡的帮助 | Xbox Support
兑换数字代码. 所有 Xbox 数字代码长度均为 25 个字符,包括数字和字母,并且采用五组字符(每组包含五个字符)格式 (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx)。. 如果你尝试在 Windows 或 Xbox 设备上兑换代码,请确保已正确输入所有 25 位数字。. 若要了解有关 Xbox 礼品卡和代码的 ...
Windows Update Troubleshooter - Microsoft Support
If you get an error code while downloading and installing Windows updates, the Update Troubleshooter can help resolve the problem. Select Start > Settings > System > Troubleshoot > Other troubleshooters. Next, under Most frequent, select Windows Update > Run.
Reset or recover your lost Microsoft account password
Follow these steps to reset your Microsoft account password. If you know the email address that you used to set up your Microsoft account (which is used to sign in to your Xbox profile), you can reset your password now: Go to Reset your password and enter your email address.
Multiply and divide numbers in Excel - Microsoft Support
Calculation operators and order of operations. Create a simple formula to multiply and divide in an Excel spreadsheet. You can multiply two or more numbers in one cell or multiply and divide numbers using cell references. All formulas in Excel begin with an equal sign (=).
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016