Merci è vous deux pour vos réponses.
Code erreur: 0x8024200D.
Je vais tenter cette solution;
"The cause of the error 0x8024200D is most likely due to the download of setup installation files was interrupted, did not finish downloading, or corrupted. The official description for error 0x8024200D is as follow:
MessageId: WU_E_UH_NEEDANOTHERDOWNLOAD
MessageText:
The update handler did not install the update because it needs to be downloaded again.
define WU_E_UH_NEEDANOTHERDOWNLOAD _HRESULT_TYPEDEF_(0x8024200DL)
The resolution that can be used to fix the issue is by removing and deleting the downloaded update files, and let Windows Update re-download again. To do so:
1.Boot into Safe Mode of Windows 10.
2.Delete the all the content of %SystemDrive%\Windows\SoftwareDistribution\Download folder.
3.Turn off the Safe Mode, restart the computer and start Windows normally.
4.Check for updates again in Windows Update to reinstall."
Quant à l'outil de MS, je ne l'ai pas essayé, mais sur une page de MS j'ai vu qu'il était inutilisable pour la version entreprise.
Je vous dirai la suite, mais si vous avez d'autres idées...
Encore merci.
Ben