I want to know about any wallet for windows where security is the first priority and breaking in through Internet should be difficult. Paper wallets can be good for it or hardware wallet?
If you want to be secured from online attack vectors, you need to choose an offline (or semi-offline) type of wallet.
A paper wallet is probable the more secure one, if you:
- know how to properly create it offline on a clean machine
- know how to properly spend from it on a clean machine
The disadvantages are that generation and spending from it can be quite a hassle. Especially for people who don't do this often.
A hardware on the other hand has the advantages:
- better usability
- easier setup
The disadvantage is that it is not free. But you will have an easier time setting it up and using it.
Both of them are kind of secure against online attacks.
If you are regularly spending coins, i'd recommend you a hardware wallet.