! i don't have right now all this space free on my hard drive 
is it possible in some other way?
is it possible in some other way?
I'm afraid you're gonna have to either delete some stuff to make room, either use a web wallet (it takes care of keeping a copy of the blockchain synced for you).
If anything, you can always buy a cheap USB key and tell the wallet to store the blockchain on it.
thanks for your help. How can i use a web wallet? I've heard about coinomi. Can i use it? what i have to do?
Don't know about coinomi but bear in mind that any exchange that supports BTG is pretty much always offering a BTG web wallet.
So Bittrex, Cryptopia... any exchange that offers BTG trading can be used as a web wallet for BTG (restrictions may apply, such as mining directly to the wallet and whatnot).
well, i've an account on bittrex..but how can i claim my btg? I have only my private keys...how can bittrex give me my btg?