i have 2 portable external hard disk.
same model...
and i think both are spoiled...
both were working fine for some time
but now both doesn't response when i plug it into my computer
i think it was because of the same reason
I lend both of the hard disk to 2 different friends to back up their computer data because their computers were down.
both of my friends couldn't get the hard disk to work and when they returned it to me, both do not reponse on my computer as well...

was my hard disk hit by some virus or something?
is there anything i can do?
or should i just send them to sim lim square to repair?
thanks!