The April 14, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvements in .NET Framework 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

Describes an update for Universal C Runtime (CRT) in Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, Windows Server 2012, Windows 7 SP1, Windows Server 2008 R2 SP1, Windows Vista SP2, or Windows Server 2008 SP2.

Saisissez votre clé de produit Windows 7 lorsque vous y êtes invité, sélectionnez Suivant, puis suivez les instructions. Saisissez votre clé de produit Windows 7, puis cliquez sur Suivant. Sélectionnez Téléphoner au Centre d’activation Microsoft. Vous devrez peut-être entrer un mot de passe d’administrateur ou confirmer votre choix.

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

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. This article will help you troubleshoot and fix common activation errors in Windows. For help finding your product key, see Find your Windows product key. For troubleshooting and other info about updating Windows 11, see Windows Update: FAQ or ...

Use Windows Update to automatically get updated and recommended drivers for hardware devices on a Windows device.

Get better performance when your Windows PC and adapter are connected to the same Wi-Fi network. If you need to change the network your adapter is connected to, here's how: Connect your Windows PC to your adapter. Open the Microsoft Wireless Display Adapter app and select Network. Choose the network you want and select Connect.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Support for Windows 10 has ended on October 14, 2025 After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10.

In Windows 10 Fall Creators Update (version 1709), Update for Microsoft Windows (KB4073120) is listed under the Installed Updates item in Control Panel. Microsoft .NET Framework 4.7.2 is available on Windows Update and on Windows Server Update Service (WSUS). It will be offered as a recommended update on Windows Update.