If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product.

右键单击该应用，选择“更多”，然后选择“打开文件位置”。此操作会打开保存应用快捷方式的位置。 如果没有“打开文件位置”选项，这意味着该应用无法在启动时运行。

Learn how to use function VLOOKUP in Excel to find data in a table or range by row. Our step-by-step guide makes vlookup in excel easy and efficient.

Erfahren Sie, wie Sie Office 2013 auf Ihrem PC oder Office für Mac 2011 installieren können.

How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.

Learn how to get ready for the Windows 11 upgrade, from making sure your device can run Windows 11 to backing up your files and installing Windows 11.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

If you're making the move to a new PC, you don't have to leave behind your photos, videos, files, and folders. You can bring them all with you to your new PC using one of the following options.

Use the Windows Settings app to change your default browser.

現象. 文書に文字を入力すると、入力した場所の文字列が削除されます。 原因. 上書き入力モードがオンで、キーボードの Ins キーが押されました。