Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter.

For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site. Get help.

Choose the power mode that works for you and what you want to do on your Windows 11 PC. This lets you determine what’s important to you—getting the best battery life, best performance, or a balance between the two. To change the power mode, select Start > Settings > System > Power & battery.

您可以使用 Microsoft Azure 服务来提供托管服务解决方案， 前提是： (1) 您有能力自行访问、配置和管理 Microsoft Azure 服务； (2) 您对托管服务 解决方案中的虚拟 OSE （如果有）有管理访问权限；以及 (3) 第三方仅对其应用程序或 虚拟 OSE 有管理访问权限。

If your account has been hacked, use our sign-in helper tool below to help guide you to the right solutions. The tool will ask for your email address or phone number, and either show appropriate self-help, or offer the chance to talk to an agent.

好友列表显示你的 Xbox 好友的当前动态，并允许你与他们进行互动。. 直接跳转进入文本聊天或群聊天（一对一或在组中），加入好友的电脑游戏或邀请他们加入你的游戏，并查找要关注的人。. 查找好友：. 按 Windows 徽标键 + G 打开 Game Bar。. 选择 小组件菜单 ...

Teredo 是一種網路通訊協定，用以在用戶端與伺服器間建立通訊，以及針對在使用網路位址轉譯 (NAT) 之路由器後方的裝置，加速彼此間的連線能力。. 在 Teredo 介面卡出現問題、網路中的裝置封鎖 Teredo 通訊協定，或電腦所安裝的軟體停用 Teredo 功能時，就會發生 ...

The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.

You can link your social media account in one of two ways: Use the Xbox mobile app to scan the QR code. Select the Link option which will launch the Microsoft Edge app on Xbox. You can choose to link your Discord, Reddit, Steam, Twitch, or other social media account.