I don't see the need to encrypt any data that reside on a PC at home even if the machine is online as long as you have a good hardware gateway. There are enough issues with potential data corruption locally to throw encryption in the mix as well. It's a recipe for disaster. 1_ if you forget your pwd 2_ if the encrypted data gets corrupted. Encryption is good when you want to secure data transfer from A to B but as a mean of protecting local storage, not really. Just complicates things further. Focus on securing your local network instead.
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