Quote from: ThomasAnderson7 on December 30, 2016, 06:14:38 PM

Hi, I've been using Blockchain .info from a while, I'm willing to switch to an offline wallet, I don't feel 100% secure with Blockchain.info, can you suggest me one?
And some tutorial noob-friendly that explain me how to use it?

FTFY. Good that you finally understood how risky Blockchain.info is.
To be fair, ~~any~~ most wallet can be used offline as long as its a desktop wallet.*

I believe that you would be asking for a desktop wallet. Electrum is the best desktop wallet I've ever used. Just create a wallet, secure your seeds in a safe place and you should be able to use it without any issues. The UI is pretty well designed. You can just use Electrum offline[1] and it would be 100% safe.

Quote from: ThomasAnderson7 on December 30, 2016, 06:14:38 PM

I mean, if my PC one day stop working, I lose my BTC? Or if I use a USB drive to store BTC, if the USB stop working, I lose my BTC? I have a lot of doubts about offline wallets, if anyone can clear me that, would be great
Thanks very much, hoping in some answers

If you are storing your wallet file only on that device and you didn't make any other backups or have the seed of that wallet. If your wallet is a HD wallet, the seeds will cover your entire wallet and it would be enough to restore your entire wallet.

[1] https://bitcointalk.org/index.php?topic=1559277.msg16904498#msg16904498
or
http://docs.electrum.org/en/latest/coldstorage.html

* Read devans's post for more clarity. Thanks devans!