Why would you want the external hdd connected all the time?
The drive contains all my work stuffs.
Windows is on internal SSD.
Personal stuffs on internal HDDs.
I don't usually turn off my computer, but once a while when I do, I have to make sure the external drive is power off upon booting, and turn them back on later. No big deal but I was told it was not suppose to be necessary, i.e. Windows is suppose to boot even with the HDD connected and powered on. Just wonder if there is some settings about it.