If your name, billing address, expiration date, or CVV number has changed for your Microsoft account payment method, you can update it. Update your payment method online. Sign in to the Payment options page with your Microsoft account.

If your Windows PC is running slowly, there are some solutions you can try to help make it run better. Here are the tips in order of what you should try to fix the problem. To get more information about each tip, use the Tips to improve PC performance link at the bottom of this topic.

If you can’t set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then choose a Balanced power plan. Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Admins should view Help for OneDrive Admins, the OneDrive Tech Community or contact Microsoft 365 for business support. Learn how to upload files to OneDrive. Save photos or files to OneDrive using the website, desktop, or mobile app.

Focus is a new feature in Windows 11 that helps you minimize distractions. To help you stay on track, it integrates with the Clock app with features like a focus timer and music integration. Note: Do not disturb has replaced focus assist from Windows 10.

拍摄快照以从全部或部分电脑屏幕上复制字词或图像。. 使用截图工具进行更改或作笔记，然后保存和共享。. 捕获以下任意类型的截图：. 自由格式截图. 在对象周围绘制自由形状。. 矩形截图. 绕对象拖动光标以构成一个矩形。. 窗口截图. 选择一个要捕获的窗口 ...

若要获取主题，请展开以下类别之一，选择主题的链接，然后选择“ 打开 ”。. 这样会将主题保存在电脑中并应用于桌面。. 如果你愿意，还可以从 Microsoft Store 安装某些主题。. 从 Microsoft 获取免费的 Windows 主题，以个性化设置电脑的背景、颜色和声音。.

Copilot 可帮助你从整个 Web 获取答案和灵感，支持创造力和协作，并帮助你专注于手头的任务。. 在发往 Copilot PC 可用的欧盟和其他市场的新款 Windows 11 电脑和新款 Copilot 电脑上，Copilot 应用将固定到 Windows 任务栏。. 对于现有的 Windows 11 电脑，可用时间和交付方法 ...

可以找到电源的地方. 如果你有兴趣购买其他电源或升级电源，请参阅 Microsoft Store Microsoft Surface 电源 。. Surface 电源专为 Surface 而设计。. 我们强烈建议仅使用正版Microsoft或Microsoft授权的电源（Surface 附带或单独购买的电源）为电池充电。.

通过使用 Excel 的 NPV 和 IRR 函数来为您的业务规划未来的现金流，您可了解最大化利润并最大程度地减少风险的方法。.