Welcome to the forum
I have no idea about the latest of version of Knoppix, but starting in Ubuntu 5.10 (and kernel version 4.2,) this adapter is supported "out of the box," according the page floppy_stuttgart linked to.
On Ubuntu 14.04, as mentioned in the same link, you simply need to open a terminal and run these commands one at a time...
sudo apt-add-repository ppa:thopiekar/mt7601
sudo apt-get update
sudo apt-get install mt7601-sta-dkms
Be sure to have some kind of internet connection when doing this. Also, it may or may not work without rebooting, I'm not sure. You would need to try it.