Write permissions to External HDD (Sony KD55XD8005)

Hey guys not sure if correct place to ask but here goes

I got an Android TV have Kodi 17 RC3 installed and all my media is on a 3TB hdd, I’ve setup a SMB location on kodi from my PC’s Download folder (Windows 10). But when i try to copy video files from my PC to the external hdd using the File manager on Kodi i get error about write permissions not set on external hdd

I’ve tried copying the files using ES file manager on the TV but can’t find a way to enable write on the eHDD, only getting read.. I know it’s not an KODI issue but thought this place be the best spot to ask theses sorts of questions as am sure I ain’t the only one trying to work this out.

Any advice and suggestions will be greatly appreciated. Thank you

Sony KD55XD8005 (Android 6.0.1)