了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

Your PC can run Windows 11 if it meets minimum (basic) system requirements. For information on basic system requirements and additional requirements for specific features, see Find Windows 11 specs, features, and computer requirements.

How to send automatic out-of-office replies from Outlook (depending on the type of email account you have).

Learn how to find which version of Windows operating system your PC is running and device specifications.

Download the Microsoft 365 Access Runtime which allows you to run Microsoft 365 Access applications if you don't have the desktop version of Microsoft 365 Access and need to use an application built to run with Access 2010 or later.

Learn how to get Windows Media Player 12 for Windows 10, Windows 8.1, and Windows 7.

There are many ways to shut down your PC—you can turn the PC off completely, you can make it sleep, or you can hibernate the PC.

Outlook.com、Hotmail、Live、または MSN のメール アカウントにサインインできない場合、サインインまたはサインアウトする方法がわからない場合は、次の解決方法を試してみてください。

This page is for Microsoft 365 Basic, Microsoft 365 Personal, and Microsoft 365 Family subscriptions only. For help with other subscriptions purchased through Microsoft see Cancel a Microsoft subscription. If you purchased a Microsoft subscription from Google Play or the Apple app store, contact their customer support for cancellation or refund.

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