获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

Note: Some cameras won't appear in the Camera settings page.These include infrared (IR) cameras used for Windows Hello Face authentication, cameras using DirectShow technology (like many apps provided by DSLR or action camera manufacturers so their devices can be used as webcams), and proprietary cameras that aren't managed by Windows—such as industrial cameras and many networked cameras.

If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers. Make sure your printer is on and connected to your PC.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Use the XLOOKUP function to find things in a table or range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term and return a result from the same row in another column, regardless of which side the return column is on.

On the Email tab, choose your account (profile), and then choose Repair.

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.

Om du vill ha support i Outlook.com klickar du här eller välj Hjälp på menyraden och anger frågan. Om självhjälpen inte löser problemet rullar du ned till Behöver du fortfarande hjälp? och välj Ja.. Om du vill kontakta oss på Outlook.com måste du logga in. Om du inte kan logga in klickar du här.. Om du vill ha mer hjälp med ditt Microsoft-konto och prenumerationer går du till ...

When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.

To keep an area of a worksheet visible while you scroll to another area of the worksheet, go to the View tab, where you can Freeze Panes to lock specific rows and columns in place, or you can Split panes to create separate windows of the same worksheet.