Windows でアプリとプログラムをアンインストールまたは削除する - Microsoft サポート
マルウェアを削除しようとしている場合は、「Windows セキュリティで保護された状態を維持する」を参照して、スキャンを実行する方法を確認してください。 別のウイルス対策ソフトウェア プログラムを使用している場合は、そのプログラムのウイルス対策オプションを確認してください。
PowerPoint でのページの向きの横向きと縦向きを変更する
Web 用 PowerPoint によってコンテンツを自動的に拡大縮小できない場合、次の 2 つのオプションが表示されます。
Applies To:
PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint for the web, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 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
Get updates for apps and games in Microsoft Store
Learn how to get Microsoft Store updates for your apps and games. Download the latest versions of Microsoft Store apps and games.
Download printer drivers in Windows - Microsoft Support
Download printer drivers. If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers.
Turn off Defender antivirus protection in Windows Security
Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.
Import and export Outlook email, contacts, and calendar
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
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, Outlook 2013, Outlook.com
Fix problems that block programs from being installed or removed ...
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.
Ändern oder Zurücksetzen des Kennworts - Microsoft-Support
Erfahren Sie, wie Sie Ihr Windows-Kennwort ändern oder zurücksetzen, wenn Sie es vergessen oder verloren haben.
Join a meeting in Microsoft Teams - Microsoft Support
Learn how to join a Microsoft Teams meeting by link, calendar, channel, chat, or by calling in.
Applies To:
Microsoft Teams