Learn how to download, install, and use the PC Health Check app to check your device's compatibility with Windows 11 and get tips to improve its performance.

Why does my reading pane have a dark background? When dark mode is turned on, the reading pane has a dark background to reduce eye strain. You can make the reading pane brighter by selecting at the top of the reading pane. If you don't see the button, select .

了解如何在电脑上创建 OneDrive 备份。 设置 OneDrive 电脑文件夹备份以访问、管理、停止或修复电脑文件夹备份的问题。 若要开始备份文件夹，请切换显示 “未备份”的任何文件夹，然后选择“ 保存更改”。 若要停止备份文件夹，请选择文件夹的切换开关将其关闭。

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。 如果有某个需要使用的应用被阻止，则可允许它通过防火墙，而不要关闭防火墙。

On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.

你可能已尝试使用 VoIP 电话号码兑换 Microsoft Rewards 积分： 你需要一个移动电话或陆线号码才能兑换 Microsoft Rewards 积分。不允许使用 IP 语音 (VoIP) 号码。 Microsoft 服务协议中概述了此要求。 为了兑换积分，你需要提供一个工作的非 VoIP 电话号码。

To create the installation media, here's what you'll need: A PC with a reliable internet connection. The download time will vary, depending on your internet connection.

You can easily insert a check mark (also known as a "tick mark") in Word, Outlook, Excel, or PowerPoint. These marks are static symbols. If you're looking for an interactive check box that you can click to check or uncheck, see: Add a check box or option button (Excel) or Make a checklist in Word. In your file, place the cursor where you want to insert the symbol.

If your screen only has a Mini DisplayPort, you can set up the following connections—connect a USB-C to HDMI adapter to an HDMI cable then to an HDMI to Mini DisplayPort and then to your external screen. Keep in mind that the more adapters used, the more degraded the signal may get.

To make substantial layout changes to a PivotTable or its various fields, you can use one of three forms: Compact form displays items from different row area fields in one column and uses indentation to distinguish between the items from different fields.Row labels take up less space in compact form, which leaves more room for numeric data.