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.

Download the latest Windows update from the Windows Update page in Settings for your device when it becomes available.

Information on how to download the Microsoft Mouse & Keyboard Center.

Learn how to find which version of Windows operating system your PC is running and device specifications.

了解如何使用 Xbox Game Pass 成员身份与任何 Xbox 主机上的好友共享权益。

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.