Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Office または Microsoft 365 を購入したときにプロダクト キーが付属していた場合は、使用している製品に対応する以下の Web サイトのいずれかにプロダクト キーを入力します。

Get to know common Windows keyboard shortcuts including copy, cut, paste, maximize a window, and more.

Find your files in Windows 11 using one of these methods. Search from the taskbar: Type the name of a document (or a keyword from it) into the search box on the taskbar.You'll see results for documents across your PC and OneDrive.

Windows で BitLocker 回復キーを見つけるためのさまざまな方法について説明し、BitLocker がシステムでどのようにアクティブ化されているかについて説明します。

Learn how to organize your favorites in Microsoft Edge. Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Learn how to create and use a VPN connection profile on Windows for secure and private internet access.

Learn how to recover files that have been lost, deleted, or accidentally changed.

Learn how to use Snipping Tool to capture a screenshot, or snip, of any object on your screen, and then annotate, save, or share the image.