-prune=n[/code] where n is in megabytes. So if you want it to be a max of 5GB, it will be -prune=5000.

Take note that you cannot import any private key nor change the wallet.dat once you enable pruning. If you do that, you will have to download the blockchain all over again.

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Really like to say thank you for all the advises. In 2-3 days I'll post an update about the result.
Thank you again