Windows の回復オプションについて説明します。 PC を初期状態に戻す方法、以前のバージョンの Windows に戻す方法、メディアを使って Windows を再インストールする方法を説明します。

Learn how to use a health report in Windows Security to manage your device performance and keep your device secure.

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).

スライド マスターとは 記事; PowerPoint でスライドの追加、配置変更、複製、削除を行う 記事; スライド レイアウトを適用する

Learn how to share a printer between a primary PC and secondary PCs on your network.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Note: If you forgot your account info and had to reset your security info, you must wait 60 days before closing your account.

Learn how to manage background activity for apps to help save battery power in Windows.

You can add columns, rows, or cells to an Excel worksheet or delete them. Columns insert to the left, rows above, and cells above or to the left.