輸入 Office 產品金鑰的位置 - Microsoft 支援服務
這些步驟僅適用於 Office 專業增強版、Visio 專業版 或 Project 專業版。 步驟 1：根據您購買的版本，啟動 Office App，例如 Word、Project 或 Visio。 步驟 2：在 [登入以設定 Office] 視窗中，選取 [我不想登入或建立帳戶] (這是位於視窗底部的一個小連結)。 步驟 3：輸入 Office 產品金鑰，但不用輸入連字號。
适用于:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 家庭版, Office.com
Add or remove a digital signature for Microsoft 365 files
Invisible digital signatures in Word, Excel, or PowerPoint. An invisible digital signature, like a visible digital signature line, assures the authenticity, integrity, and origin of a document.
适用于:
Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 PowerPoint, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016
Meet Windows 11: Easily switch to Windows 11 - Microsoft Support
Try it! Windows Hello Use Windows Hello to quickly and securely sign in to your PC using your face, fingerprint, or a PIN. Learn about Windows Hello and set it up. OneDrive When you save your files to OneDrive, you can quickly access them from any device, including a new PC.
Turn Windows Security on or off - Microsoft Support
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
Download and install Microsoft 365 Access Runtime
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 ...
适用于:
Microsoft 365 专属 Access, Access 2021, Office 2021, Access 2019, Office 2019
Opening PDFs in Word - Microsoft Support
To open a PDF file without converting it to a Word document, open the file directly wherever it's stored (for example, double-click the PDF file in your Documents folder).
适用于:
Microsoft 365 专属 Word, Word 2021, Word 2019, Word 2016, Word 2013
Cómo usar la aplicación Comprobación de estado del PC
La aplicación Comprobación de estado del PC te ofrece información actualizada sobre el estado de tu dispositivo Windows. Esto te permitirá tomar medidas que mejoren el rendimiento de tu dispositivo y solucionen problemas que lo puedan reducir.
从本地帐户更改为Microsoft帐户 - Microsoft 支持
了解如何将 Windows 登录从本地帐户更改为Microsoft帐户，以便跨所有设备同步设置。 最初设置 Windows 设备时，可能已选择使用本地帐户而不是Microsoft帐户。 本地帐户与Microsoft帐户之间的主要区别在于，本地帐户特定于一台设备，而Microsoft帐户可以跨 ...
How to use multiple monitors in Windows - Microsoft Support
Tip: If you're using a wireless display adapter, connect to an HDMI port on newer TVs, then wirelessly connect your PC to it.After connecting your wireless display adapter to your TV, go to your Windows 11 PC, press Windows logo key + K to open Cast, then select your wireless display adapter.
Surface battery won’t charge or Surface won’t run on battery
Follow these steps if your Surface is plugged in and not charging or it turns off immediately when you remove the power supply unit (PSU).