Exactly what Cougar said.
Yes, DBAN could in theory be recovered but it would be such an undertaking the average criminal wouldn’t even bother. In fact even exceptional crackers wouldn’t bother either unless you have something worth devoting a lot of expensive resources to. Physically destroying the HDD is both wasteful and completely unnecessary.
DBAN is good enough, don’t over complicate things.
If you have OEM licence I assume it’ll be 7 or 8 you are running for that age, just get the installation media from Microsoft and put a fresh install on after wiping the drive. Did it with my folks Packard Bell / Acer no bother.