This:
"I asked the guy who installed it and he said it was a pirated version! He said it was safe and he uses these all the time. I should have just stuck with my genuine old Windows 7, but I love Windows 10 so much."
Did you pay for a legitimate version of Windows 10? Did he build the entire PC? What else might he have skimped on?
Would not be too surprised that $7.51 USB BT adapter does not work. Even more so if that link is where the BT adapter was purchased.
Here is a link to Orico's website:
http://www.orico.cc/goods.php?id=6003
Scroll to the bottom and on the left is Driver Download. See if you can find the applicable driver for your computer plus some installation instructions.
That all said, please be aware that it is against Forum rules to help with pirating or pirated software, circumventing passwords and other security policies.
I believe that I have used all the leeway available with respect to the above.
So no further assistance can be provided. Take your PC back to him and have him fix the problem(s). And install a legitimate copy of Windows 10.
If he can not or will not then go elsewhere. You need to find a honest PC installer for your computer services and support.
Thread is being closed.