Can't get Nano board to show up in Device Manager

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brand new @ , can't past step 0.  frustrating!  got nano boards (and other stuff, not important now).  know boards have ch340 chip, installed drivers those.  when plug board in, nothing happens in device driver @ all.  tools > port menu in arduino ide grayed out.  port see in device manager > ports (com & lpt) usb preloader (android) assume android device hooked kids not long ago (assigned com3).  absolutely nothing happens when plug in of 5 boards got.  seems windows issue, i'm @ loss.  tried unplugging usb didn't have have, disabled running in background (that blocking access serial ports firewall), etc.  , yes, rebooted.  not sure go here.

the boards have 1 solid red led on , blinks every 2 seconds or when plug them in, if helps @ all...  (can't read led markings, magnifier on order!)  i'm running windows 10.  appreciated.

don't use charge-only usb cable, perhaps....  :-)


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