Arduino: 1.8.7 (Windows 10), Board: "Adafruit Flora" S

I keep getting the air couldn't find the board...the flora board shows up in the usb com 3 and then as I is uploading the program it chimes and the next thing the device disappears and it will not reset to bring it back into view again. 3 days I have been fightimg with this.

I am new to this however I follow directions pretty well. I just cant find a person to speak to who can help me fix this issue..

Anyone out there???

this is the error message below
Arduino: 1.8.7 (Windows Store 1.8.15.0) (Windows 10), Board: "Adafruit Flora"

Sketch uses 4116 bytes (14%) of program storage space. Maximum is 28672 bytes.
Global variables use 149 bytes of dynamic memory.
Couldn't find a Board on the selected port. Check that you have the correct port selected. If it is correct, try pressing the board's reset button after initiating the upload.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.