Describes how to use the clean boot process to troubleshoot a problem in Windows 8.1, Windows 8, Windows 7, or Windows Vista.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

See a list of options available for starting Windows in diagnostic modes such as safe mode.

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。

*People in presenter roles who are not signed in can't see or admit others from the lobby on Teams web and desktop. Change meeting roles Before a meeting

Discusses the release of the Malicious Software Removal Tool (MSRT) to help remove specific prevalent malicious software from Windows-based computers.

Dictation lets you use speech-to-text to author content in Office with a microphone and reliable internet connection. Use your voice to quickly create documents, emails, notes, presentations, or even slide notes.

This page provides phone numbers of Microsoft customer service.

Try these troubleshooting steps if Microsoft Store does not launch in Windows 10.

Download the latest internet browser recommended by Microsoft from the official support page.