You've removed any possible chance that an user could recover any data, excluding some weird geek type. The only practical option is to have some "data recovery service" where you send away the discs to try to do this. Of course those services costs tend to be expensive, so you decide if the data is worth it.
My old HP desk top Hard Drive crashed long ago (2008?).
I had a tech come to the house to repair and replaced the hard drive.
Per my request , he had also opened up the HDD so i could see what the actual disk looked like inside.
I removed the disk from its casing and stored it away (avoiding any static damage).
Since i no longer have its original casing and components , is it still POSSIBLE to have any info/data recovered?
Ive heard recently that it is NOT possible.
Please let me know,,No point in still holding onto it if that is the case..Thanks