Accidently deleted a filefolder

Is there any way to get it back? I’ve tried using Recuva and Asoftech data recovery but neither of them can help me it seems. Is there any other way? I meant to delete a folder inside the one that I delete. Please help, it’s a very large folder of important things to me, over 200 gb worth.

So you didn’t create a Safepoint or other backup it looks like…

You would have to open the NAS, take the disk out, connect it to a computer using a USB to SATA adapter to test various recovery tools.