If you can't sign into your Microsoft account, use our guided tool below to help you find the correct solution. Start The My Account portal helps you to manage your work or school account by setting up and managing your security info, managing your connected organizations and devices, or viewing how your organization uses your data.

At Microsoft, we're guided by our AI principles, our Responsible AI Standard, and decades of research on AI, grounding, and privacy-preserving machine learning.Data privacy and security is a key principle of responsible AI. We aim to help our customers use our AI products responsibly, sharing our learnings, and building trust-based partnerships.

重要: 在选择从媒体启动之前，应验证设备是否满足最低系统要求，因为满足后才允许安装 Windows 11，如果你至少具有 TPM 1.2（而不是最低系统要求的 TPM 2.0），它将不会根据处理器的系列和模型验证处理器是否在批准的 CPU 列表上。

As you're getting your Microsoft 365 business subscription set up, you'll want to download and install your Microsoft 365 apps, like Word, Excel, Microsoft Teams, and PowerPoint, on your PC or Mac.

If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try to restore it from a previous version.Previous versions are copies of files and folders that Windows automatically saves as part of a restore point.

The Access 365 Runtime is like previous runtimes in that all design-related UI is either removed or disabled. The Access 365 Runtime includes the Access Database Engine which contains a set of components that facilitate the transfer of data between existing Microsoft Office files such as Microsoft Office Access (*.mdb and *.accdb) files and Microsoft Office Excel (*.xls, *.xlsx, and *.xlsb ...

The great news is you usually don’t have to do anything! If you have enabled automatic updates, new updates will automatically download and install whenever they’re available, so you don’t have to think about it. On the left side of this page, you’ll find a list of all the updates released for this version of Windows.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

If the publisher's signature hasn’t been trusted, the Microsoft 365 program doesn’t load the add-in, and the Trust Bar displays a notification that the add-in has been disabled. Disable notification for unsigned add-ins (code will remain disabled) When you check the Require Application Extensions to be signed by Trusted Publisher box, this ...

Observação: A melhor e mais segura maneira de obter atualizações de driver no Windows é sempre por meio do Windows Update.Se você estiver tendo problemas com o Windows Update, verifique primeiro se algum dos links em Atualizar o Windows pode ajudá-lo.