How do I remove this shortcut virus (in my system and flashdrive) PERMANENTLY?

I have Windows8. And so far it's doing good. And I am satisfied by the service the WindowsDefender was giving to me, until recently.

TRIGGER and CAUSE:

Yesterday, when my friend was transferring movies to my flashdrive... my files turned to shortcuts..
He didn't know what to do, so I said, "it's fine just remove my flash drive I will try to fix it on my laptop."

When I plugged it in my laptop, I was a little preoccupied on removing the virus from it. I searched the internet. And found cmd commands on removing the shortcuts and recovering the files.. Yes I was able to recover them. And reformatted my flashdrive.
But then the virus keeps converting my files to shortcuts even right after reformatting was done.

BTW, when I was running cmd commands.. I found a file along with the hidden files and the shortcuts of the files..
THIS FILE IS CALLED: nkvasyoxww.vbs

does it ring any bell to you guys?

i know it has something to do with the virus. coz it keeps appearing even after i delete it..

So I know that the virus has reached my system.
And I was really hoping Windows Defender could fix it. I tried updating it. Did a full-scan on the system. It found only 3 virus and I'm so sure they weren't related to the shortcut virus...
After that I tried looking it up on the internet again... and they all suggest the same...


>do the cmd commands...    attrib -h -r -s /s /d E:\*.*

>install AV blah blah...

but nothing seems to work...
I dont wanna let go of my Windows Defender. :(


but if it's necessary to switch to a better AV.. then please help me.