Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Help to decide whether you should install the 32-bit Office version or the 64-bit Office version. Which version is right for you depends on how you plan to use Office. Find out about choosing between 32-bit Office and 64-bit Office.

Get troubleshooting tips to fix problems with apps from Microsoft Store.

If you need help with Outlook.com, you can read our self-help content, or get support via email.

Learn how to get Outlook set up to work with Microsoft 365, POP, IMAP, or Microsoft Exchange-based email accounts.

Learn new and useful keyboard features, tips, and tricks for Windows with this overview from Microsoft Support.

Here are some answers to the frequently asked questions about the OneDrive desktop app for Windows.

How to add a signature to your Word documents. You can also use the Signature Line command in Word to insert a line to show where to sign a document.

Troubleshoot problems you might be having with your mouse or keyboard, or other wireless device in Windows.

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。