I think i got it.
Modify the Value from 2 to 3 of "Start" string.
Reboot and you should have no more greyout. This should stop the service and set to manual start. And will allow u to Start it.
If it works, rep+ me pls.
I hope what you tried with the other attempts hasn't done anything to the registry to offset this lol. Edit:
The startup Type remained greyed out, however you should be able to Start the services now.