修复 Windows 中的声音或音频问题; 设置 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式 USB-C 耳机

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Keeping your login information secure will sometimes require you to change a password. You can easily edit the passwords saved in Microsoft Edge.

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC.

[設定] の [Windows Update] ページにアクセスするための推奨オプションなど、Windows 11 をインストールする方法をご覧ください。

How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.

Learn about different things you can try to fix Ethernet network connection problems in Windows

Download the latest Windows update from the Windows Update page in Settings for your device when it becomes available.

To download the offline installer for Internet Explorer 11, choose your language and system below.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.