The product key is preinstalled on your PC, included with the packaging the PC came in, or included on the Certificate of Authenticity (COA) attached to the PC.

Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your "issue" fixed, it's better to be safe and not click any links or provide any personal information.

Here are some of the most common types of phishing scams: Emails that promise a reward, such as "Click this link to get your tax refund!" A document that appears to come from a friend, bank, or other reputable organization.

了解如何在移动设备、Windows 设备或 Xbox 主机上兑换 Microsoft/Xbox 礼品卡或其他代码。

尋找關於 Xbox Game Pass Ultimate 特別福利常見問題的解答。

详细了解最新版本 Xbox 无线控制器上的按钮、扳机和控制杆。

To change the refresh rate. Select Start > Settings > System > Display > Advanced display .. Next to Choose a refresh rate, select the rate you want. The refresh rates that appear depend on your display and what it supports. Select laptops and external displays will support higher refresh rates.

如何兌換禮品卡、Xbox 下載代碼或令牌. Microsoft和 Xbox 禮品卡以及下載代碼和令牌的運作方式相同：兌換到您的Microsoft帳戶后，您就可以在 Microsoft Store 網路商店、Windows 或 Xbox 上使用餘額，而且可以取得最新應用程式、遊戲、電影、電視節目，以及 Surface、Xbox 和配件的下載。

Select the Windows logo key on your device or keyboard, or you can select the Windows key in the lower-left corner of the main screen.; Select Settings > Network & internet > Advanced network settings > Network reset > Reset now.

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.