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

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

We're committed to delivering continuous innovation by releasing new features and enhancements into Windows 11 more frequently. Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR). ...

Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

How to stop website notifications in Microsoft Edge. You can remove or block notifications for individual websites in the following ways: Remove or block notifications in Edge settings