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I am encrypting my hard drive using bitlocker, there is an option to unlock drive using smartcard. I checked couple of shopping sites all I found is smart card readers wondering where do I get card? What if I lose smartcard will I lose my hard drive? Is it reliable?

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up vote 1 down vote accepted

This should answer most of your questions about what a smart card is and how they work. Here is an example of a place to purchase them.

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