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How can you tell that your internet has been activated again? by lights on the modem plus the assurance of Frontier?
Was the CSR who said they had to come to your residence, a CSR of Frontier themselves? if so, you may have to believe them when they say their policy is such-and-such.
As for watching and recording TV via a Hauppauge tuner... that means that your computer is functioning, I think, unless the Hauppauge tuner is an internet TV tuner rather than the more usual TV-tuner-into-computer arrangement (which of course, needs a cable/satellite/antenna TV signal... is your TV from Frontier?)
Well, the answer to the new question depends upon whether you are running Windows or MAC OS X / Apple on your computer. Also it depends upon what sort of prompt or insistence or message you receive, what the window title is, and that sort of thing.
To 'only allow an external hard drive with a password', sounds a bit odd. It might be (if that is an Access password, rather than a file-encryption password) that you have an option in the BIOS Setup enabled, like this one:
see image link
so you might want to go into the BIOS Setup and check on whether an option like that is enabled - touching nothing else, of course, in the way of BIOS Setup options, and changing nothing or Exit Without Saving if you change something and don't know how to change it back to the original value.
If your C: Hard disk does not demand a hard disk password, then that option is almost certainly not enabled.
As for whether one can have two hard disks with passwords, that depends very much upon what software comes up when the first hard disk with password ***** been connected and is accessible or is about to be accessible.
What software comes up, can be told by the title of the window that prompts for the password, or similar window that appears when the hard disk with password ***** just been connected.