Microsoft アカウントにサインインするためのエイリアスを使用した Microsoft アカウントのメール アドレスまたは電話番号を変更する方法について説明します。

Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.

スライド マスターとは 記事; PowerPoint でスライドの追加、配置変更、複製、削除を行う 記事; スライド レイアウトを適用する

Improve your writing skills with Word's tools for spelling, grammar, and clarity. Find out how to check and correct errors in your documents.

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

Learn how to manage the payment information and billing for your Microsoft 365 subscription.

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

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). ...

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Sign in using two-step verification or security info; Create app passwords in Security info (preview) Set up a phone call as your verification method