Change the email address or phone number for your Microsoft account
Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.
Applies To:
Microsoft account dashboard
Connect to a VPN in Windows - Microsoft Support
Learn how to create and use a VPN connection profile on Windows for secure and private internet access.
Change or reset your PIN - Microsoft Support
Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.
使用している Office のバージョンを確認する方法 - Microsoft サポート
使用している Office のバージョンを確認する方法について説明します。 Office アプリの製品名とバージョン番号を見つけます。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, OneNote for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Project Online, InfoPath 2013
Contact Microsoft Office Support - Microsoft Support
Contact Microsoft Office Support for assistance with Microsoft 365, Office, Windows, Xbox, Surface products and more.
OneDrive のファイルとフォルダーの共有 - Microsoft サポート
OneDrive をクラウド バックアップとして使用して、ファイルやフォルダーを他のユーザーと共有します。 アクセス許可を制御する、編集を許可する、または有効期限を設定する方法について説明します。
Applies To:
OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint Server 2016, SharePoint Server 2013 Enterprise, SharePoint in Microsoft 365, Office for business, Microsoft 365 admin, OneDrive (work or school), Office.com, OneDrive (home or personal), SharePoint in Microsoft 365 Small Business
Setting up a wireless network in Windows - Microsoft Support
A wireless network at home lets you get online from more places in your house. This article describes the basic steps for setting up a wireless network and starting to use it.
在 Windows 中查找 BitLocker 恢复密钥 - Microsoft 支持
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。
Change the size of your desktop icons in Windows
Change the size of your desktop icons. To resize desktop icons, right-click (or press and hold) the desktop, point to View, then select Large icons, Medium icons, or Small icons.
Updating to the latest version of Skype - Microsoft Support
We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.