激活 Windows - Microsoft 支持
了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。
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
About Microsoft Authenticator - Microsoft Support
Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.
Applies To:
Microsoft account dashboard
How to redeem gift cards and codes | Xbox Support
Learn how to redeem a Microsoft/Xbox gift card or other code on your mobile device, Windows device, or Xbox console.
View sent email - Microsoft Support
After an email message is sent in Outlook 2013 or Outlook 2016, you can check it later to read it again or resend it.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
激活 Office - Microsoft 支持
如何激活预安装在新 Windows 10 计算机上的 Office 或使用新的产品密钥。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
Microsoft .NET Framework 4.7.2 offline installer for Windows
When you install this package, the following packages or updates are installed per your operating system: In Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1, .NET Framework 4.7.2 is listed as an installed product under the Programs and Features item in Control Panel.
تنشيط Windows - دعم Microsoft
تعرف على كيفية تنشيط Windows باستخدام مفتاح منتج أو ترخيص رقمي والتحقق من حالة التنشيط وربط حساب Microsoft الخاص بك.
How to use multiple monitors in Windows - Microsoft Support
Connect and adjust multiple monitors in Windows with this guide. Learn tips and tricks from related webpages on snapping, splitting, and multitasking.
Keeping leading zeros and large numbers - Microsoft Support
Keeping leading zeros and large numbers in Excel. Use a custom format to keep the leading zeros. If you want to resolve the issue just within the workbook because it's not used by other programs as a data source, you can use a custom or a special format to keep the leading zeros.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016, Excel 2013