XPS14 Ultrabook how to "system unlock" in bios

You must place a voice phone call to Dell support.  Be prepared with your ownership registration details and since the system is almost certainly out of warranty, a credit card to pay for the support call.

The cost of a support call is about $60.  Essentially, it's the same situation you'd be in if you lost the only key to your home's lock - you'd have to pay a *** to change the lock.

Pay for a support call? How much?

I should have the password to unlock it I paid for the laptop why must I pay for it?

That's not true. I have NOT lost the key, I can get in to my BIOS, you have locked part of the BIOS not giving me access now want to charge me for giving me the key. How in the world could that remotely be like losing my key? I've not lost ANY key, I own the laptop 100%, paid for in cash yet you locked part of my bios without my permission nor me knowing about it.

If you have not set any administrator passwords (and no prior owner or other individual did), there is nothing to unlock.  What exactly are you looking for?

If you're looking for "advanced" tweaking settings such as the ability to change memory timing, video RAM allocation, etc .... they're not there, and there's no way to add them to a system that doesn't include them.

It's time to contact the seller from whom you purchased the system.

that's funny... I am talking to them now... as I said I purchased it direct from you, Dell.com

Do you get a password prompt when you try to change settings?  Or are the settings just greyed out?

There are very few options you can in fact change  -- particularly in UEFI mode.