Create installation media for Windows - Microsoft Support
Installation media, such as a USB flash drive, can be used to install a new copy of Windows, perform a clean installation of Windows, or reinstall Windows. To create installation media, go to the software download website, where step-by-step instructions can be found. On that website, you can select a version of Windows and create installation media on a USB flash. Alternatively, an ISO file ...
Free up drive space in Windows - Microsoft Support
Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.
Uninstall Microsoft 365 or Office from a PC - Microsoft Support
The following steps describe how to uninstall Microsoft 365 products on a PC (laptop, desktop, or 2-in-1). For Mac, see Uninstall Office for Mac.
Applies To: Office 2024, Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Microsoft365.com, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Windows デバイスのセットアップ時に接続する - Microsoft サポート
Windows デバイスのセットアップ中にインターネットに接続すると、最新の機能、セキュリティ更新プログラム、ドライバーをすぐに入手できます。 Windows Home または Pro を実行しているデバイスの設定を完了するには、インターネット接続が必要です。 セットアップ中にオンラインになるのに ...
January 13, 2026—KB5074109 (OS Builds 26200.7623 and 26100.7623 ...
This cumulative update for Windows 11, version 25H2 and 24H2 (KB5074109), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained ...
Ways to install Windows 11 - Microsoft Support
Learn how to install Windows 11, including the recommended option of using the Windows Update page in Settings.
Install Windows Updates - Microsoft Support
Learn how to check for the latest Windows Updates and install them to keep your device running smoothly and securely.
January 24, 2026—KB5078127 (OS Builds 26200.7628 and 26100.7628) Out-of ...
Improvements This OOB update includes quality improvements. This update is cumulative and includes security fixes and improvements from the January 13, 2026, security update (KB5074109) and the out-of-band update (KB5077744) from January 17, 2026, in addition to the following: [File System] Fixed: After installing the Windows update released on and after January 13, 2026, some applications ...
Xbox Support
Xbox Support ... Xbox Support
使用系統檔案檢查程式工具來修復遺失或損毀的系統檔案 - Microsoft 支援服務
當關鍵的 Windows 系統檔案遺失或損壞時,你的作業系統可能會開始故障。 常見症狀包括 Windows 功能無法正常運作、系統錯誤,或 Windows 變得無反應或當機。 若遇到這些問題,您可以使用內建的 Windows 修復工具——部署映像服務與管理 (DISM) 以及系統檔案檢查器 (SFC) ——掃描系統檔案並恢復遺失或 ...