Boot from a Windows 10 Install Media (USB disk)

Select Next on language/region

Select Repair PC option on bottom left

Select Troubleshoot

Boot a command prompt

run diskpart

list disk to identify the internal hard disk

select disk # to select the proper disk

list the disk volumes – list vol

Identify the EFI hidden volume # number (Hidden, kind of 512Mb, could be formatted FAT32)

Selection this EFI hidden volume : select vol #

Assign a drive letter : assign letter=n:

exit

browse from command line to this EFI drive letter N:

Repair the BCD boot : bcdboot C:\windows /s n: /f UEFI

Repair the MBR : bootrec /fixmbr

Reboot the machine

Getting an access denied, even as admin or system account on a (corrupted) user folder you want to be renamed ? Well you can fix that on the next reboot, with the following trick

Navigate as an admin to the registry key located at :

HKLM\SYSTEM\CurrentControlSet\Control\Session Manager

Create a multiSZ named « PendingFileRenameOperations » (or edit the existing one and add two more lines). The two lines are (and hit enter for a final empty line, so total 3 lines:

\??\C:\Users\profile
\??\C:\Users\profile.old

Save that multiSZ and reboot, the folder will be renamed on next reboot.

Première étape, désactiver la tâche d’évaluation de santé de Configuration Manager dans (si plus besoin de CCM sur Serveur), sinon, il se réinstalle tout seul !

« Task Scheduler Library / Microsoft / configuration Manager / Configuration Manager Health Evaluation ».

Ou sinon éditer le fichier ccmeval.xml et enlever cette condition de prérequis.

Désinstaller SilverLight depuis le panneau de commande / applications. Si pas disponible, passer en ligne de commande elevée, et lancer la commande :

wmic product where caption='Microsoft Silverlight' call uninstall