安装 Windows 更新 | Microsoft Support
Windows 更新相关主题 如果在尝试更新时收到错误或安装更新时遇到问题，请参阅 排查更新 Windows 时出现的问题。 如果收到 Windows 更新的警告，表明设备上没有足够的空间来安装更新，请参阅 释放空间用于 Windows 更新。 如果未通过检查更新自动提供最新版本，可以通过 Windows 更新助手 手动获取它 ...
August 11, 2026-KB5121650 Cumulative Update for .NET Framework 3.5, 4.8 ...
Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows Server 2022. Security Improvements CVE-2026-65810 - .NET Framework Elevation of Privilege vulnerability This security update addresses an elevation of privilege vulnerability detailed in CVE-2026-65810. CVE-2026-62872 - .NET Framework Elevation of Privilege vulnerability This security update ...
Free weekly calendar templates on Microsoft365.com
Use create.microsoft.com to find free weekly calendar templates for Excel. Download weekly calendars, planners, and scheduling templates for Excel.
Applies To:
Excel for Microsoft 365, Excel 2024, Excel 2021
My Account portal for work or school accounts | Microsoft Support
The My Account portal helps you to manage your work or school account by setting up and managing your security info, managing your devices, changing your profile photo, and viewing how your organization uses your data.
Microsoft account sign-in helper | Microsoft Support
If you can't sign into your Microsoft account, use the sign-in helper to identify the problem. How to use the Microsoft account sign-in helper The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If it detects a problem with your account, we'll tell you what you need to do to solve the problem. If the tool ...
Applies To:
Outlook 2024, Outlook 2024 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2016, Microsoft 365 for home, Outlook.com, GroupMe, Microsoft 365 Family, Microsoft 365 Personal, Microsoft account dashboard, Microsoft Teams personal, Microsoft To Do, Outlook for Android, Outlook for iOS
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Surface Pro 4 specs and features | Microsoft Support
Get an overview of Microsoft Surface Pro 4 features, including available configurations and accessories, ports and connectors, and included software.
XBOX gamertag FAQ | XBOX Support
We updated new XBOX gamertags to support a 12-character max, Unicode-based name of your choice, with an auto-generated suffix if the gamertag is shared. We offer 13 different alphabets for gamers, which support more than 200 languages worldwide.
Excel 2016 用のセキュリティ更新プログラムについて: 2026 年 8 月 11 日 (KB5002903)
注 このセキュリティ更新プログラムを適用するには、コンピューター上にリリース版の Excel 2016 がインストールされている必要があります。
Set up your Android device for cloud gaming | XBOX Support
Learn how to set up XBOX Cloud Gaming on your Android phone or tablet. Includes steps for installing the XBOX app, using invite links, and streaming games with Game Pass Ultimate.