So, when I started a new job, I used my personal laptop for work purposes (because the computers there were full of spam and unsecure). Eventually, the work software caused my laptop to crash. My owner agreed to buy me a new one (because my old one was no longer useable). I purchased the machine in a credit line under my name, but paid the credit line through the business. The laptop is also registered to me personally.
My owner is a jerk (surprise, surprise) and is now claiming that he can take my laptop whenever he wants and that I should watch out, because I am a student and I am lucky he lets me use it for school.
Can he legally take this from me, and if so, how can I make this not the case (do I need to pay for it, part of it...?). I would like to not have to pay for it because it was meant to replace my personal property destroyed while being utilized for company purposes.