“Grant” Ownership of a folder?

I’ve installed a database program under the domain administrator account onto a workstation. Now whenever that user tries to access the database, they get an error. However when I give them administrative rights, they have no problem.

I’m assuming that the “cannot access other users files” caveat of the powerusers group is what is causing this error. Therefor if I make that user the “owner” of that particular files folder and contents that should fix the problem correct?

Problem is, I can only find info and how to “take” ownership as an administrator would.

Any ideas?

Thanks for your time,