I found this instruction on piping commands in Windows CMD:
The "pipe" redirects the output of a program or command to a second program or command.
Syntax:
Command1 | Command2
[Source] (at the very bottom)
Yet docker ps -aq | docker start or any similar combination just returns errors.
The only working combination to start all stopped container works in PowerShell.
docker start $(docker ps -a -q -f "status=exited")