Highlighting duplicates from two different worksheets, but only when all of the data in a row matches

Hey guys. Sorry to post such a random question. Essentially, I've got two sheets I'm working off. The jist is on sheet 1 I've got new fresh data, on sheet 2 I've data from a few years back.

Essentially, I want to paste in the old data into sheet 2 and have it highlight on sheet 1 if the data matches everything columns A through E on each so that it isn't used again.

I've tried everything I can think of, and I'm probably missing something really obvious. I get Too Many Arguments error, or it only matches data on a single column.

Can anyone point me in the right direction as I'm pulling my hair out over this.

Much appreciated