Microsoft vient de publier une nouvelle mise à jour cumulative Windows 10, KB4568831. Elle s’adresse aux PC sous 2004 alias May 2020 Update. Elle apporte plusieurs corrections de bugs.
Cette mise à jour cumulative est proposée de manière facultative. Elle permet d’avoir un aperçu du contenu, du moins d’une partie du contenu prévu lors du prochain Patch Tuesday. Son installation permet au système d’exploitation d’évoluer en version 19041.423. Ce nombre est à retenir car il permet de s’assurer que l’installation s’est déroulée avec succès.
Microsoft apporte des tas de correctifs à Windows 10 v2004. Cette mise à jour de fonctionnalités est actuellement en cours de déploiement. Le processus fonctionne par étape. En clair une première « vague » d’appareils a pu l’installer tandis que Microsoft le rend disponible progressivement. L’approche permet de limiter le nombre de victimes en cas de bugs majeurs.
KB4568831 est disponible au travers du service Windows Update via la section Mises à jour facultatives. Il est aussi possible de procéder à son téléchargement via Microsoft Update Catalog.
Sa note de version est imposante. Vous trouverez tous les détails en fin d’article. Il y a quelques corrections importantes.
Windows 10 et KB4568831
Par exemple Microsoft corrige un bug affectant certains PC après l’installation de Windows 10 v2004. Il empêche de se connecter à Internet à l’aide d’un modem cellulaire. Il est intéressant de noter que Microsoft propose un correctif par Internet à des appareils qui ne peuvent pas se connecter à Internet. La solution est de récupérer KB4568831 via Microsoft Update Catalog à l’aide d’un appareil secondaire puis de procéder à son installation à l’aide d’une clé USB par exemple.
A cela s’ajoute un correctif afin de résoudre un plantage de « Paramètres ». De nombreux utilisateurs sont victimes d’une défaillance de l’application. Paramètres se bloque d’un seul coup sans explication. Des améliorations sont apportées au service d’impression réseau qui parfois est inaccessible à certaines applications. Un correctif apporte une solution à un problème WNS. A ce sujet Microsoft explique
« Nous avons corrigé un problème dans le service WNS (Windows Push Notification) qui vous empêche de sélectionner une interface VPN (virtual private network) pour effectuer des connexions sortantes. »
Enfin le géant s’est attaqué aux applications UWP. Parfois il est observé un plantage de ces dernières si un appel au Gestionnaire de redémarrage est affecté pour procéder à un redémarrage de l’Explorateur de fichiers.
Si KB4568831 apporte de nombreuses corrections, elle n’est pas parfaite. Nous avons un problème connu et non corrigé. Il n’est pas nouveau puisqu’il accompagne plusieurs mises à jour. Il s’agit d’un bug de l’IME
Enfin il n’est pas recommandé d’installer tout ce petit monde sur un PC de production. Microsoft procédé à des tests en vue d’un déploiement automatique lors du prochain Patch Tuesdday. Selon le calendrier de Redmond il est prévu pour le 11 aout prochain.
KB4568831, note de version
- Addresses an issue that prevents you from using sharing functionality in Microsoft Office. This occurs when Conditional Access is enabled.
- Addresses an issue that occurs when a third-party application loads hidden tabs into Internet Options.
- Addresses an issue in Microsoft Edge IE mode that occurs when you open multiple documents from a SharePoint site.
- Addresses an issue in Microsoft Edge IE mode that occurs when you browse using anchor links.
- Addresses an issue with pasting mixed content of images and text from Microsoft Word into Internet Explorer.
- Addresses an issue that might cause Microsoft browsers to incorrectly bypass proxy servers.
- Addresses an issue in the Windows Push Notification (WNS) service that prevents you from selecting a virtual private network (VPN) interface to make outbound connections. As a result, you lose connectivity with the WNS service when forced tunneling is used.
- Addresses an issue that might cause the Magnifier to stop working in Microsoft Excel in certain scenarios. As a result, Microsoft Excel might also stop working.
- Addresses an issue that prevents you from installing some .msi apps. This occurs when a device is managed by a Group Policy that redirects the AppData folder to a network folder.
- Addresses an issue that might display 4K high dynamic range (HDR) content darker than expected when you configure certain non-HDR systems for HDR Streaming.
- Addresses an issue that causes new child windows to flicker and appear as white squares on server devices that are configured for stark visual contrast.
- Addresses an issue that causes the Settings page to close unexpectedly, which prevents default applications from being set up properly.
- Addresses an issue that causes all open Universal Windows Platform (UWP) apps to close unexpectedly. This occurs when their installer calls the Restart Manager to restart File Explorer (explorer.exe).
- Addresses an issue that prevents Windows 8.1 apps from projecting to a secondary display when those apps use the StartProjectingAsync API.
- Addresses an issue that prevents family safety features, such as time limits and activity reporting, from working on ARM64 devices.
- Addresses an issue with File Explorer’s preview of .msg files when Microsoft Outlook 64-bit is installed.
- Addresses an issue that causes a KERNEL_SECURITY_CHECK_FAILURE (139) stop error when Windows resumes from Sleep and turns on certain Bluetooth headsets.
- Addresses an issue that might prevent certain display driver reset utilities from properly reinstalling the same driver on the system.
- Addresses a reliability issue in WDF01000.sys.
- Addresses an issue that causes memory leaks when an application calls the CryptCATAdminCalcHashFromFileHandle() function. The leaked memory is reclaimed when the application closes.
- Improves support for non-ASCII file paths for Microsoft Defender Advanced Threat Protection (ATP) Auto Incident Response (IR).
- Addresses an issue that prevents some machines from automatically going into Sleep mode under certain circumstances because of Microsoft Defender ATP Auto IR.
- Addresses an issue that prevents some machines from running Microsoft Defender ATP Threat & Vulnerability Management successfully.
- Addresses an issue that prevents Microsoft Defender ATP from applying file exclusions in some cases, which leads to application compatibility issues.
- Addresses an issue in Microsoft Defender ATP that prevents some machines from reporting the installed applications to Threat & Vulnerability Management.
- Addresses an issue that causes automatic investigations to fail in Microsoft Defender ATP.
- Improves Microsoft Defender ATP’s ability to identify malicious code injection activities.
- Addresses an issue that prevents some applications from printing to network printers.
- Addresses an issue that might cause a printer to be a hidden device in Device Manager after a restart.
- Addresses an issue that might cause the Print Management console to display script errors when you enable the Extended View option.
- Addresses an issue that causes printing to fail in certain scenarios.
- Addresses an issue that might prevent a Windows 10 device from reaching the internet when using a wireless wide area network (WWAN) LTE modem. However, the Network Connectivity Status Indicator (NCSI) in the notification area might still indicate that you are connected to the internet.
- Addresses an issue that might prevent internet connectivity on some cellular modems after upgrading to Windows 10, version 2004.
- Addresses an issue that causes telephony applications to lose the first four digits.
- Addresses an issue with in-memory parity bitmaps that can cause data integrity issues on Parity Storage Spaces.
- Addresses an issue that prevents the creation of a storage pool using Manage Storage Spaces in Control panel.
- Addresses an issue that might cause the Microsoft Remote Assistance process (msra.exe) to stop working when a user is receiving assistance during a computer session. The error is 0xc0000005 or 0xc0000409.