IMAP と POP とは何ですか。 - Microsoft サポート
imap と pop は電子メールにアクセスするための方法です。 imap は、携帯電話、ノート pc、タブレットなど、さまざまなデバイスからメールを確認する必要があるときに推奨される方法です。
Applies To: Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Office for business, Microsoft 365 admin, Outlook.com, Outlook Web App for Office 365 operated by 21Vianet, New Outlook for Windows, Outlook Mail for Windows 10
Archive items manually - Microsoft Support
By default, Outlook uses AutoArchive to archive items at a regular interval. To learn more, see Archive older items automatically.. You can also archive items manually whenever you want.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Solve PC problems over a remote connection - Microsoft Support
Use the Windows Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).
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
Setup OneDrive for Microsoft 365 for business
OneDrive is your online cloud storage within Microsoft 365. It lets you store your individual work files that you don't want your colleagues to have access to unless you choose to share the files with them.
KB5001716: Update for Windows Update Service components
Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.For this reason, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.
Fix problems with apps from Microsoft Store
See also. If you can't find Microsoft Store, see Trouble finding Microsoft Store in Windows 10. If you're having trouble launching Microsoft Store, see Microsoft Store doesn't launch. If you can launch the Microsoft Store but you are just having trouble finding or installing an app, see I can't find or install an app from Microsoft Store. Need more help?
Introduction to Outlook Data Files (.pst and .ost)
Note: In earlier versions of Outlook, IMAP accounts also used an Outlook Data File (.pst).In Outlook 2016 and Outlook for Microsoft 365, IMAP accounts use Offline Outlook Data Files (.ost). You can also use an Outlook Data File (.pst) to backup or export items from any type of email account.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Set up and use Outlook - Microsoft Support
Now you can view email for the accounts you added. You can also view your calendar, contacts, and tasks. Next steps. For steps to migrate your old email, calendar, and contacts to Microsoft 365, see Move your old email, calendars, and contacts to Microsoft 365.
SUM 関数を使って範囲内の数値を合計する - Microsoft サポート
単純な数式を使用すると、範囲内の数値 (セルのグループ) を合計できますが、数個以上の数値を操作する場合は sum 関数を使用する方が簡単です。 たとえば、=sum(a2:a6) は、=a2+a3+a4+a5+a6 よりも入力エラーが発生する可能性が低くなります。
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016