Learn how to download and install apps you need from your Microsoft 365 business subscription.

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 you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.

Learn how to find your Windows product key for activation or when to use a digital license instead.

Learn how to view and delete your browser history and other history in Microsoft Edge.

Check the Xbox services, games, and apps for any service outages.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

Saiba como instalar, reinstalar ou ativar o Microsoft 365 ou o Office 2019 em um PC ou Mac.

Learn how to navigate Windows using keyboard shortcuts. Explore a full list of taskbar, command prompt, and general Windows shortcuts.