how to convert old 2014 quarks to new ones 2017 ?
There's an explanation on page 25 of this thread.
The most important thing to do is
backup your wallet.dat file.
Once you have installed the new wallet version you'll need to copy your old wallet.dat file over.
Let us know how things go.
Good luck.
I think you can simply download the latest version of the 0.10.7 wallet and get your COINS