If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. 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.

Note: The TEXT function converts numbers to text, which may make it difficult to reference in later calculations.It’s best to keep your original value in one cell, and then use the TEXT function in another cell. Then, if you need to build other formulas, always reference the original value and not the TEXT function result.

注意: 在Windows中获取驱动程序更新的最佳和最安全的方法始终是通过Windows 更新。如果在Windows 更新时遇到问题，则可能会看到 Update Windows 中的任何链接是否可帮助你先解决问题。

Discover the latest updates for Windows 10, including improvements and fixes, known issues, and guidance on how to get the update.

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

I know which version I want. How do I install it? The 64-bit version of Microsoft 365 is automatically installed unless you explicitly select the 32-bit version before beginning the installation process.. To install either the 32 or 64-bit version of Microsoft 365, Office 2021, or Office 2019, follow the steps in Install Office on a PC.

On the Home tab, in the Number group, click the arrow next to the General box, and then click More Number Formats.

If you want to give access to desktop apps, make sure that Let desktop apps access your microphone is turned on.You can't turn off microphone access for individual apps. Others can't hear me. Try the following solutions:

重要: Microsoft アカウント、Windows オペレーティング システム、およびその他の Microsoft 製品には、お客様の情報をセキュリティで保護するためのパスワードが含まれています。この記事では、パスワードを忘れた場合にリセットまたは回復するために使用できるオプションをいくつか示します。

Download Microsoft Edge, Microsoft Launcher, or Link to Windows from the Google Play Store and sign in with your Microsoft account.