Cant erase already deleted files

Hello everyone

I cant erase already deleted files files from my hdd.

I tried to use different programms

Did a defragmentation then Copied DVD several times until my hard drive was full.

Nothing changes. Everytime after that i could recover old deleted files with <competitors software removed by moderator>.

Some of it i can open.

May be i need some Windows setting to make Wipe programs work properly with HDD?

Could you help me please.

The only way i could delete already deleted files is entire hdd erase

WDC WD6402AAEX-00Y9A0

Win 7 Professional SP1