Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

[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。

ดาวน์โหลดแอป Microsoft Teams สําหรับอุปกรณ์เคลื่อนที่สําหรับ IOS และ ...

See how to find things you've downloaded on your PC.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

Enter your current password, enter your new password, and then select Save.

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.

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

Get tips for how to set up and test microphones in Windows.