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It's listed in many BIOS screens under "security".

• SmellyGeekBoy 8y ago
  So if my BIOS doesn't mention it I'm in the clear? Or is it just the case that some users have no way to disable/enable it?
  • exikyut 8y ago
    Google your BIOS version strings, perhaps, or extract/dump and disassemble/unpack it.
  • jlgaddis 8y ago
    You might be in the clear, but make sure you've traversed every menu and sub-menu in the BIOS configuration. One of my laptops -- I don't recall which, sorry -- has the settings located a few levels deep with some very unsuspecting terminology. Even when I was looking specifically for it (I knew it was in there!), it took me a few minutes to actually find it. Also, WRT turning it off, there are typically two options: deactivate and disable. One is just "temporary" (in that it can be turned back on later), the other is (supposedly) permanent and "impossible" to revert. Make sure you choose the right one (for you).