There should be a log on the C drive
Could you open reg edit and see if this key is present
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\BITS\Parameters]
“ServiceDll”=hex(2):43,00,3a,00,5c,00,57,00,49,00,4e,00,44,00,4f,00,57,00,53,\
00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,71,00,6d,00,\
67,00,72,00,2e,00,64,00,6c,00,6c,00,00,00