sounds like the USB device for the card reader gets de-activated during bootup, and thus when you hot-plug, when it gets plugged in and powers up, it works again.
Which version of Windows are you running?
Rig(s) not listed, because I change computers, like some people change their socks.
ATX is for poor people. And 'gamers.' - phucheneh
haswell is bulldozer... - aigomorla
"DON'T BUY INTEL, they will send secret signals down the internet, which
will considerably slow down your computer". - SOFTengCOMPelec