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[–] xyzzy 0 points 2 points (+2|-0) ago 

So the bootloader is a potential vulnerable spot then?

I wouldn't say it's vulnerable, but readable.

When you say bad for performance, do you mean it's not encrypted well enough? Or that it slows down the PC? What kind of bad are we looking at?

It slows down. Since every file read from disk has to be decrypted and only part of them remain cached in the RAM. So reading from disk is slow and uses CPU power.

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[–] ImSureImPerfect [S] ago 

Assuming you had a strong PC - say, one designed to be powerful enough to do some serious multitasking, and to run some demanding software - this would be less of an issue then, yes?

Thanks for answering all of my nitpicky questions, by the way. This is probably the last one. My curiosity is getting pretty satisfied.

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[–] xyzzy 0 points 2 points (+2|-0) ago 

It sure would be less of an issue but still slower than without encryption. What helps most is a lot of RAM.

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[–] Ninbyo 0 points 1 point (+1|-0) ago 

Or dedicated hardware encryption. Which is used in some military and other sensitive systems.