Phishing and suspicious behavior in Outlook - Microsoft Support
Learn how to deal with phishing or spoofing scams or abusive messages in Outlook.com.
Applies To:
Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows
How to use the taskbar in Windows - Microsoft Support
Learn how to use the taskbar features in Windows. Hide the taskbar, pin an app, change the location, and more with taskbar settings.
Fix microphone problems - Microsoft Support
If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.
Add or manage an iCloud email account in Outlook
Select Add Account, in the Suggested account dropdown, enter the iCloud account you want to add, and select Continue.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
About the Microsoft Support and Recovery Assistant
Learn how to download Microsoft Support and Recovery Assistant to help fix problems with Microsoft 365, Office, or Outlook.
Applies To:
Outlook for Microsoft 365, Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Microsoft 365 admin
Protect a worksheet - Microsoft Support
To help improve your privacy in Excel, a password adds protection to worksheets to help prevent others from changing, moving, or deleting important data.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Change your Office product key - Microsoft Support
How to change your product key to fix activation errors that can occur if you own and install multiple one-time purchases of Office..
Applies To:
OneNote for Microsoft 365, Visio Plan 2, 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, Excel 2021 for Mac, OneNote 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, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016
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
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。
Applies To:
Microsoft account dashboard
Dark Mode in Outlook - Microsoft Support
In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.
Applies To:
Outlook for Microsoft 365, Outlook on the web, Outlook.com
Add or subtract dates - Microsoft Support
Add or subtract days, months, or years from a date by using a formula or date functions in Excel.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016