If the target BMR computer is started in safe mode with networking (recommended), in addition to 'Server' and 'Remote Registry' services, the 'Task Scheduler' service also needs to be started (it is needed to mark special restored system files for activation upon reboot), if a corresponding registry entry is not loaded prior to starting the BMR, the DS-Client won't be able to start the 'Task Scheduler' service.

Resolution:

Enable all required services on the BMR target computer (started in Safe Mode with Networking) by creating a file with the content below (you can use Notepad and create it as a text file first, then change its extension to .reg, and then double-click on it to have its content loaded in registry, there will be a Windows information message confirming that the content was successfully loaded):

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\RemoteRegistry] @="Service"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\SamSs] @="Service"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Schedule] @="Service"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\srv] @="Driver"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\srv2] @="Driver"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\srvnet] @="Driver"