Hi truckeeGWB
I am Dave, an Independent Advisor, I will help you with this . . .
Bitlocker is not on by default on a standard installation, this is a known problem with Dell Devices, their techs turn on Bitlocker on their default image they load laptops from . .
Log into this page: https://account.microsoft.com/devices/recoveryk...
Do you find the Bitlocker key there?
If not, you may try to contact Dell Support to see if they know the key
If you re-install Windows 10 using a bootable Windows 10 USB created form the Microsoft website, then Bitlocker should not be enabled by default . . .