DBF file lost after OS reinstalled

Dear experts,

I have an oracle DB in XP. Few days ago, the windows XP was attacked by virus and cannot be startup back.

Now, I am installing a fresh Windows XP and oracle DB in my “NEW” HDD. I would like to use back the old dbf files (which stores all the data) in the old hard disk, which is storing the corrupted windows XP.

Is it possible to do this?