Company asking admin rights of my personal laptop [migrated]

Our so-called startup company asked us to work from home due to coronavirus but did not provide us with any company laptops and we were told they are unavailable.

So, I bought my own laptop and now my manager/IT people are asking for admin rights of my personal laptop and asking to use it office purpose only.

What should I do? If I don’t agree to give then these rights, they are threatening to fire me. Is it normal? Do I have any employee rights to disagree and fight?