Help can't delete files

[Space monkey 12]

Hi everyone bit of a problem hoping someone knows what to do will try explain as best I can

I own a NAS I recently ran a backup from this nas using the Rsync protocol,

I used DeltaCopy for Windows to allow the Rsync to a windows pc, the backups ran perfectly completed no errors.

MY problem is that I changed a backup location on my computer all good but when I tried to delete the older backup it gives a error message saying that I will need permission from system administrator to delete this file and contents... I am logged in as administrator and cant delete the folders just gives errors

How can I fix this problem

 

[hang-the-9]

Right-click on the folder, go to advanced security and take ownership of the files. Make sure you select the "change subfolders" options.