Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Find your Wi-Fi network password in Windows, so you can connect to your Wi-Fi network on other devices.

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

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

Learn how to check if your PC is capable of running TPM 2.0 or how to enable TPM 2.0 to upgrade to Windows 11.

Microsoft アカウントにサインインするためのエイリアスを使用した Microsoft アカウントのメール アドレスまたは電話番号を変更する方法について説明します。

Here's how to turn Bluetooth on or off in Windows 10: Select the Start button, then select Settings > Devices > Bluetooth & other devices.

The Microsoft Mouse and Keyboard Center is an app that helps you make the most out of your Microsoft keyboard and mouse. Mouse and Keyboard Center helps you personalize and customize how you work on your PC.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。