Search up on google with "site:bitcointalk.org" then your keywords, most of your questions have more than likely been answered and discussed in detail.
Here is something you might be looking for: https://bitcointalksearch.org/topic/howto-create-a-100-secure-wallet-17240
More discussion regarding cold storage and some techniques on paper wallets: https://bitcointalksearch.org/topic/safest-cold-storage-quick-814698
Topic: guide on 100% safe paper wallet? - page 2. (Read 1464 times)
Buy a trezor it basically does all the security for you 
How would I go about creating a 100% safe paper wallet...from online threats anyway.
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