Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Find and download free templates to create documents like calendars, business cards, letters, greeting cards, brochures, newsletters, or resumes.

Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled. Someone you know, such as a family member, bought something with your card. You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or ...

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

若要解決安裝 Microsoft 365時因連接速度緩慢或不可靠而可能會遇到的問題，請遵循下列方案專屬的步驟。 您必須連線到網際網路，才能下載安裝程式檔案。下載完成後，您便可以在方便的時候，以離線方式將 Microsoft 365 安裝在電腦上。 離線安裝程式步驟 下列步驟會因您的 Microsoft 365 產品是屬於 家用 ...

Windows 11版本 23H2 更新历史记录 应用对象 发布日期: 2023/10/31 版本: Windows 11版本 23H2

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

Driver updates for most hardware devices in Windows are automatically downloaded and installed through Windows Update. Windows Update updates drivers for various hardware including network adapters, printers, scanners, and video cards. Drivers updated through Windows Update are normally recent and up to date. However, drivers can also be updated through Device Manager. Drivers updated through ...

With System Restore you can revert your PC's state to a previous point in time. This can be particularly useful when troubleshooting issues caused by recent changes, such as software installations, driver updates, or system settings modifications. By using System Restore, you can undo these changes without affecting your personal files, providing a safe way to resolve problems without losing ...

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. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Having problems with your product key?