Deleted the files that comes inside the beaglebone black. Now computer can't detect it.

My office colleague accidentally deleted the files that are shown when the beaglebone black is connected withe the computer. These files were:

~ Start.htm
~ licence.txt
~ autorun.inf
~ Apps folder
~ Docs folder
~ Drivers folder
~ scripts folder

and other txt files. Now, computer is not able to detect the beagebone. I tried flashing it but nothing is happening at all. Please help me to restore all the files back to it or what possible steps can be taken.

You took out the boot loader… Follow the reflashing procedure exactly as written…

Exact procedure on -

http://elinux.org/Beagleboard:Updating_The_Software#Flashing_the_eMMC