Using external NTFS drive from windows on mac with bootcamp I am new to StackExchange so please pardon, if my request does not follow all best practices. 

My dad uses Windows 10 on a MacBook pro 2015 via Bootcamp. His backup data is on an external NTFS hard drive. He is unable to access the data.

I am using NTFS with mac via paragon software. I.e. I am aware of the different file types. 

What I am struggling with is that, since he is running bootcamp, he is probably not able to use a paragon NTFS driver for mac, is he?

Is this a know issue? Can somebody advise on how to approach this? Happy to buy a Software like the Paragon driver, if that solves the quest.
Windows 10 installed on a Mac does not need a third party driver in order to read an external NTFS hard drive (question was based on wrong perception). Thank you to David Anderson