Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

A Microsoft account recovery code is a 25-digit code used to help you regain access to your account if you forget your password or if your account is compromised.

Feb 4, 2025 · Learn how to install Windows 11, including the recommended option of using the Windows Update page in Settings.

Microsoft サポートは、Microsoft 製品に関するサポートを提供します。 Microsoft Copilot、Microsoft 365、Windows、Surface などのハウツー記事、ビデオ、トレーニングを検索します。

Learn how to sign in to Office or Microsoft 365 from a desktop application or your web browser.

Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.

Microsoft always keeps an eye out for unusual sign-in activity, just in case someone else is trying to get into your account. If you're travelling to a new place or using a new device, we might ask …

Select Start > Settings > Update & Security > Troubleshoot > Additional troubleshooters. Next, under Get up and running, select Windows Update > Run the troubleshooter.

Microsoft Edge is the default web browser in Windows 11. It offers a fast and secure browsing experience with features like tab management, reading mode, and built-in security tools.

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