Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

Learn how to use drag and drop to transfer content between your Android device and PC.

如果计划与自己或其他人共享 OneNote 笔记本，则最好在 OneDrive 上从头开始创建它。 不过，在计算机上创建了笔记本之后，可以将它移动到 OneDrive。

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

FILTER 函数将返回一个数组，如果该数组是公式的最终结果，则将溢出。 这意味着，当按“Enter”时，Excel 将动态创建相应大小的数组范围。如果支持数据位于 Excel 表格中，若使用结构化引用，则从数组范围中添加或删除数据时，数组将自动重设大小。 有关详细信息，请参阅关于溢出数组行为的此 ...

Share your calendar in an email. If you don't want to give someone permissions to share your calendar and see updates, you can email a static copy of your calendar for a specific date range.

Use a ready signature template from a gallery to create your email signature in Outlook.