Learn how to install and use OneDrive to sync files between your Windows device and the cloud.

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

PC 正常性チェック アプリは、お使いの Windows デバイスの正常性に関する最新の情報を提供して、デバイスのパフォーマンス向上のための対処や、パフォーマンス問題のトラブルシューティングに役立ちます。

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Discusses the release of the Malicious Software Removal Tool (MSRT) to help remove specific prevalent malicious software from Windows-based computers.

We'll describe three connection types for keyboards and mice. Follow the description that applies to your mouse or keyboard’s connection type.

An icon is added to the right of your Address bar, letting you sign in and customize the extension. To change your My Apps portal using the extension

Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

Erfahren Sie, wie Sie Sound- oder Audioprobleme in Windows beheben.

Add-ins provide optional commands and features for Microsoft Excel. By default, add-ins are not immediately available in Excel, so you must first install and (in some cases) activate these add-ins so that you can use them. Some add-ins are built in to Excel, such as Solver and the Analysis ToolPak. Some other add-ins are available from the Download Center, and must first be downloaded and ...