Change your screen resolution in Windows - Microsoft Support
Learn how to improve the clarity of text and images displayed on your screen by changing the screen resolution of your monitor.
Edit a PDF - Microsoft Support
To edit a PDF, open it in Word. This works best with PDFs that are mostly text. PDFs of book chapters or something that looks like a manuscript from a copier won't be formatted well in Word.
Applies To:
Word for Microsoft 365, Word 2021, Word 2019, Word 2016
Office Help & Training
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Install Office updates - Microsoft Support
Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.
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, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Office 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, InfoPath 2013, InfoPath Filler 2013
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.
ファイルを圧縮および展開する - Microsoft サポート
JPEG 画像のような特定の種類のファイルは、既に高度に圧縮されています。 複数の JPEG 画像を 1 つのフォルダーに zip 圧縮しても、フォルダーの合計サイズは元の画像をまとめたサイズとほぼ同じです。
Windows セキュリティによる保護を利用します - Microsoft サポート
Windows セキュリティでウイルス対策機能を使って、マルウェア、ウイルス、その他の脅威から Windows PC を保護する方法を説明します。
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
Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2
Language packs for Windows - Microsoft Support
Learn how to download, install, and configure additional language packs for various versions of Windows.